EP0213231A1 - Substrat en papier résistant à l'eau, pour couches photographiques - Google Patents

Substrat en papier résistant à l'eau, pour couches photographiques Download PDF

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Publication number
EP0213231A1
EP0213231A1 EP85111135A EP85111135A EP0213231A1 EP 0213231 A1 EP0213231 A1 EP 0213231A1 EP 85111135 A EP85111135 A EP 85111135A EP 85111135 A EP85111135 A EP 85111135A EP 0213231 A1 EP0213231 A1 EP 0213231A1
Authority
EP
European Patent Office
Prior art keywords
paper
paper support
aluminum
pulp
weight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP85111135A
Other languages
German (de)
English (en)
Other versions
EP0213231B1 (fr
Inventor
Reiner Chem.-Ing. Anthonsen
Ferenc Kertész
Wieland Dr. Dipl.-Phys. Sack
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Felix Schoeller Jr Foto und Spezialpapiere GmbH
Felex Schoeller Jr and GmbH and Co KG
Original Assignee
Felix Schoeller Jr Foto und Spezialpapiere GmbH
Felex Schoeller Jr and GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Felix Schoeller Jr Foto und Spezialpapiere GmbH, Felex Schoeller Jr and GmbH and Co KG filed Critical Felix Schoeller Jr Foto und Spezialpapiere GmbH
Priority to EP85111135A priority Critical patent/EP0213231B1/fr
Priority to AT85111135T priority patent/ATE42839T1/de
Priority to DE8585111135T priority patent/DE3569991D1/de
Priority to US06/899,971 priority patent/US4844777A/en
Priority to ES8601591A priority patent/ES2001125A6/es
Priority to JP61206954A priority patent/JPH0648364B2/ja
Publication of EP0213231A1 publication Critical patent/EP0213231A1/fr
Application granted granted Critical
Publication of EP0213231B1 publication Critical patent/EP0213231B1/fr
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/66—Salts, e.g. alums
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/04—Physical treatment, e.g. heating, irradiating
    • D21H25/06—Physical treatment, e.g. heating, irradiating of impregnated or coated paper
    • 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
    • G03C1/775—Photosensitive materials characterised by the base or auxiliary layers the base being of paper
    • G03C1/79—Macromolecular coatings or impregnations therefor, e.g. varnishes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/17—Ketenes, e.g. ketene dimers
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/18—Reinforcing agents
    • D21H21/20—Wet strength agents
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/50—Spraying or projecting

Definitions

  • the invention relates to a waterproof paper support for photographic layers with at least one coating hardened by electron beams.
  • Water-proof coated photographic paper supports are known in various embodiments. Papers provided with extruded polyolefin layers have found wide application.
  • DE-OS 30 22 451, DE-OS 30 22 709 and DE-OS 34 10 797 paper supports are described which consist of base paper with at least one coating produced in situ with the aid of electron beam curing.
  • the electron beam hardened coating has improved properties compared to the polyolefin coatings, which are documented in the increase in scratch resistance, increase in pigment absorption and a smoother surface. Like the polyolefin coating, it is resistant to photographic process solutions and therefore also protects the paper carrier underneath from the penetration of these solutions and thus decisively shortens the process time.
  • the resin coatings hardened by means of electron beams can contain pigments, dyes, optical brighteners, image stabilizers, antioxidants or other additives, insofar as this is desirable or necessary in view of the desired properties of an overlying photographic image.
  • the photographic layers are applied either directly or after previously applying an adhesion-promoting intermediate layer to the surface of the Brought resin layer.
  • These photographic layers are preferably layers which are known under the term silver salt photography and which are used to produce black / white or color images.
  • DE-OS 30 46 130 describes the application of a polyolefin coating on the radiation-hardened layer. With this choice of the arrangement of the layers, however, the advantages of the coating hardened by electron beams are almost lost.
  • German patent application P 33 00 025.5 Another possibility for reducing the formation of fog is described in German patent application P 33 00 025.5.
  • the paper carrier is partially sealed by means of a polyolefin layer applied by extrusion, on which the coating curable by electron beams is applied.
  • the advantages of radiation-hardened coatings are retained, but this also does not completely prevent the formation of fog when stored for a long time.
  • the object of the invention is therefore to provide a waterproof photographic paper support which is provided with at least one electron-curable synthetic resin layer and thereby all known It has advantages of the papers provided with these coatings, which, however, does not influence the sensitivity of the overlying photographic layers and does not cause any fog in the photographic layers even after a long storage period.
  • the coating applied on one side and solidified by means of electron beams preferably contains pigment in addition to the binder and has an application weight of 5 to 40 g / m2 (preferably 15 to 25 g / m2).
  • the hardenable mixture is applied using known coating methods, e.g. B. according to DE-OS 30 22 709.
  • the back of the paper can also be coated with a hardenable layer and, if appropriate, further layers.
  • the two-sided layers can also be applied in one operation and solidified at the same time.
  • the paper backing is highly sized with a hydrophobizing inner sizing which can essentially be achieved by so-called reactive sizing agents, in particular alkyl ketene dimers.
  • reactive sizing agents in particular alkyl ketene dimers.
  • the sizing with reactive sizing agents significantly reduces the bath penetration at the edges of the paper carrier achieved during the photographic process, compared to acid-sized paper substrates that have a size based on precipitated resin or fatty acid soaps.
  • the base paper can have a basis weight of 100 to 250 g / cm2 (preferably 150 to 170 g / cm2) and can be produced exclusively from cellulose fibers or from mixtures of cellulose fibers with synthetic fibers.
  • additives e.g. B. contain wet strength agents, retention aids, white or color pigments and optical brighteners.
  • the amount of aluminum ions is 1 to 12 kg / t of pulp, preferably 3 to 6 kg / t of pulp. It is surprising that the aluminum ions do not negatively influence the degree of sizing as expected, but that, if the pH is maintained, a complete sizing effect is achieved combined with the advantages according to the invention.
  • the desired result is achieved in a pH range of 5 to 8, preferably 6 to 8.
  • the lowering of the pH to values less than 5 leads to a deterioration in the sizing and is expressed, for example, by: B. by deeper penetration into the paper during the photographic process.
  • An increase in the pH value to values above 8 leads to a flocculation of the aluminum ions as aluminum hydroxide.
  • aluminum salts can be used as the supplier of the aluminum ions, for example aluminum sulfate, aluminum chloride, aluminum nitrate, aluminum lactate, aluminum formate, sodium aluminate and potassium aluminum sulfate.
  • the paper pulp was sized with 0.6% by weight alkyl ketene dimer and 1.2% by weight wet strength agent in the neutral pH range.
  • the amount of layers applied was approx. 20 g / m2.
  • the coating was then cured under nitrogen using electron beams using an energy dose of 4 Mrad.
  • the paper pulp was sized with 0.6% by weight alkyl ketene dimer and 1.2% by weight wet strength agent in the neutral pH range. Sheets were made from the paper pulp, to which the following amounts of aluminum ions in the form of aluminum sulfate had been added: 2a 0.1% by weight 2b 0.3% by weight 2c 0.5% by weight 2d 0.7% by weight 2e 1.0% by weight 2f 1.2% by weight
  • the base papers produced therefrom were coated on one side with the curable layer described in Example 1.
  • the amount of layers applied was approximately 20 g / m2.
  • the coating was cured under nitrogen using electron beams using an energy dose of 4 Mrad.
  • a paper mass with 0.6% by weight alkyl ketene dimer and 1.2% by weight wet strength agent was sized to produce a paper carrier weighing approximately 160 g / m 2. Sheets were made from this, to which either aluminum sulfate or aluminum chloride had been added and adjusted to the following pH values, optionally with NaOH or H2SO4 (the quantities given are based on the content of aluminum ions): The base papers thus obtained were coated on one side with the curable layer described in Example 1. The amount of coating applied was cured under nitrogen using electrons using an energy dose of 4 Mrad.
  • the paper pulp was sized with 0.8% by weight alkyl ketene dimer and 1.5% by weight wet strength agent in the neutral pH range.
  • the base paper dried to a residual moisture content of approx. 22%, was provided with a surface impregnation by means of a spray process.
  • the solution used for the surface impregnation had the following composition: 20 g / l starch 15 g / l NaCl 10 g / l Na2SO3 20 g / l Na2S2O5 80 g / l Al lactate 50 g / m2 (0.56% by weight Al ions) of this solution were absorbed by the base paper.
  • the base paper was coated on one side with the curable layer described in Example 1.
  • the amount of layers applied was approx. 20 g / m2.
  • the coating was cured under nitrogen using electron beams using an energy dose of 4 Mrad.
  • the paper pulp was sized with 0.8% by weight alkyl ketene dimer and 1.5% by weight wet strength agent in the neutral pH range.
  • the base paper thus obtained was provided with a surface impregnation using two horizontal presses arranged one above the other. The arrangement during the impregnation process was such that the upper horizontal press had a narrow gap to allow the base paper, provided with a thin film of liquid, to pass through, and that the lower horizontal press was closed to the extent that it was a wiping device for the excess impregnation solution.
  • the solution used for the surface impregnation had the following composition: 20 g / l starch 100 g / l white pigment (anatase) 15 g / l NaCl 15 g / l Na2SO3 10 g / l Na2S2O5 100 g / l Al lactate
  • the influence of the different carrier materials on the fog formation in photographic layers was determined by placing samples of each example coated with radiation-hardened layers between two sheets of commercially available light-sensitive silver halide paper and storing them in the dark for 6 days at 50 ° C. and 40% relative atmospheric humidity. In this contact test, the sheets were subjected to a pressure load of approximately 300 g / m2.
  • test specimens were removed and the photographic papers which had come into contact with the test specimens were exposed and developed to a medium shade of gray.
  • Table 1 shows the difference, ⁇ D, of the two values, which means that the gray tone becomes darker due to the contacts with the test sheets.
  • the effect according to the invention is not limited to the use of the aluminum cations in the paper pulp according to the examples mentioned. It can also be achieved by the additional impregnation of a paper support glued with reactive sizing agents by means of a surface coating containing aluminum ions, as described in Example 6.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
EP85111135A 1985-09-04 1985-09-04 Substrat en papier résistant à l'eau, pour couches photographiques Expired EP0213231B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP85111135A EP0213231B1 (fr) 1985-09-04 1985-09-04 Substrat en papier résistant à l'eau, pour couches photographiques
AT85111135T ATE42839T1 (de) 1985-09-04 1985-09-04 Wasserfester papiertraeger fuer fotografische schichten.
DE8585111135T DE3569991D1 (en) 1985-09-04 1985-09-04 Waterproof paper support for photographic layers
US06/899,971 US4844777A (en) 1985-09-04 1986-08-25 Water-resistant photographic paper support
ES8601591A ES2001125A6 (es) 1985-09-04 1986-09-03 Soporte de papel impermeable al agua para capas fotograficas y procedimiento para producir el mismo
JP61206954A JPH0648364B2 (ja) 1985-09-04 1986-09-04 写真層の耐水性紙支持体及びその製造法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP85111135A EP0213231B1 (fr) 1985-09-04 1985-09-04 Substrat en papier résistant à l'eau, pour couches photographiques

Publications (2)

Publication Number Publication Date
EP0213231A1 true EP0213231A1 (fr) 1987-03-11
EP0213231B1 EP0213231B1 (fr) 1989-05-03

Family

ID=8193737

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85111135A Expired EP0213231B1 (fr) 1985-09-04 1985-09-04 Substrat en papier résistant à l'eau, pour couches photographiques

Country Status (6)

Country Link
US (1) US4844777A (fr)
EP (1) EP0213231B1 (fr)
JP (1) JPH0648364B2 (fr)
AT (1) ATE42839T1 (fr)
DE (1) DE3569991D1 (fr)
ES (1) ES2001125A6 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0362823A3 (en) * 1988-10-04 1990-10-31 Fuji Photo Film Co., Ltd. Paper for photograph
EP2400055A4 (fr) * 2009-10-02 2012-12-05 Grandia Oriol Gracia Procédé de traitement chimique de l'amidon pour application sur des feuilles de papier
CN107780292A (zh) * 2016-08-25 2018-03-09 天津市有为印刷包装有限公司 一种易降解的防水纸及其制备方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5374508A (en) * 1990-12-21 1994-12-20 New Oji Paper Co., Ltd. Support sheet for photographic printing sheet
DE69127432T2 (de) * 1990-12-21 1998-04-09 Oji Paper Co Schichtträger für photographische Abzüge
DE4302678A1 (de) * 1993-02-01 1994-08-04 Schoeller Felix Jun Papier Recyclierbarer Schichtträger
EP1770214A1 (fr) * 2005-09-28 2007-04-04 Fuji Photo Film B.V. Support d'enregistrement

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2394289A (en) * 1944-09-12 1946-02-05 Eastman Kodak Co Photographic paper
US2705685A (en) * 1952-11-25 1955-04-05 Adelphi Res And Mfg Company Photosensitive paper base material and method of making the same
FR1420321A (fr) * 1964-01-15 1965-12-03 Eastman Kodak Co Papier à grande résistance à l'état humide ou mouillé
FR2027528A1 (fr) * 1968-10-24 1970-10-02 Eastman Kodak Co
DE2344367A1 (de) * 1973-09-03 1975-03-20 Schoeller Felix Jun Fa Verfahren zur herstellung eines fotografischen traegermaterials zur beschichtung mit polyolefinen
DE3022709A1 (de) * 1980-06-18 1982-01-07 Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück Wasserfestes fotografisches papier und verfahren zu seiner herstellung
DE3238865A1 (de) * 1981-10-21 1983-05-05 Fuji Photo Film Co., Ltd., Minami-Ashigara, Kanagawa Photographischer traeger
DE3310979A1 (de) * 1982-03-26 1983-09-29 Fuji Photo Film Co., Ltd., Minami Ashigara, Kanagawa Verfahren zur herstellung eines hochverleimten papiers
DE3400125A1 (de) * 1984-01-04 1985-07-18 Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück Photographischer papiertraeger

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3615795A (en) * 1969-02-19 1971-10-26 Eastman Kodak Co Method for sizing paper
US3630830A (en) * 1969-06-30 1971-12-28 Eastman Kodak Co Method for surface sizing of paper
US4133688A (en) * 1975-01-24 1979-01-09 Felix Schoeller, Jr. Photographic carrier material containing thermoplastic microspheres
JPS54147204A (en) * 1978-05-10 1979-11-17 Mitsubishi Paper Mills Ltd Paper making method
JPS54147211A (en) * 1978-05-10 1979-11-17 Mitsubishi Paper Mills Ltd Paper producing method
DE3022451A1 (de) * 1980-06-14 1982-01-07 Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück Wasserfestes fotografisches papier
DE3046130A1 (de) * 1980-12-06 1982-07-15 Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück Mehrschichtiges fotografisches traegermaterial
JPS6017103B2 (ja) * 1981-03-24 1985-05-01 三菱製紙株式会社 印画紙用支持体
JPS5895729A (ja) * 1981-12-03 1983-06-07 Mitsubishi Paper Mills Ltd 写真材料
JPS57139598A (en) * 1982-01-07 1982-08-28 Mitsubishi Paper Mills Ltd Production of paper
DE3300025A1 (de) * 1983-01-03 1984-07-05 Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück Wasserfester fotografischer papiertraeger
BE895801A (fr) * 1983-02-04 1983-05-30 Felix Schoeller Jr G M B H Support papier photographique
JPS59199900A (ja) * 1983-04-18 1984-11-13 三菱製紙株式会社 中性紙
JPS60144736A (ja) * 1984-01-09 1985-07-31 Fuji Photo Film Co Ltd 写真用印画紙支持体の製造法

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2394289A (en) * 1944-09-12 1946-02-05 Eastman Kodak Co Photographic paper
US2705685A (en) * 1952-11-25 1955-04-05 Adelphi Res And Mfg Company Photosensitive paper base material and method of making the same
FR1420321A (fr) * 1964-01-15 1965-12-03 Eastman Kodak Co Papier à grande résistance à l'état humide ou mouillé
FR2027528A1 (fr) * 1968-10-24 1970-10-02 Eastman Kodak Co
DE2344367A1 (de) * 1973-09-03 1975-03-20 Schoeller Felix Jun Fa Verfahren zur herstellung eines fotografischen traegermaterials zur beschichtung mit polyolefinen
DE3022709A1 (de) * 1980-06-18 1982-01-07 Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück Wasserfestes fotografisches papier und verfahren zu seiner herstellung
DE3238865A1 (de) * 1981-10-21 1983-05-05 Fuji Photo Film Co., Ltd., Minami-Ashigara, Kanagawa Photographischer traeger
DE3310979A1 (de) * 1982-03-26 1983-09-29 Fuji Photo Film Co., Ltd., Minami Ashigara, Kanagawa Verfahren zur herstellung eines hochverleimten papiers
DE3400125A1 (de) * 1984-01-04 1985-07-18 Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück Photographischer papiertraeger

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0362823A3 (en) * 1988-10-04 1990-10-31 Fuji Photo Film Co., Ltd. Paper for photograph
EP2400055A4 (fr) * 2009-10-02 2012-12-05 Grandia Oriol Gracia Procédé de traitement chimique de l'amidon pour application sur des feuilles de papier
CN107780292A (zh) * 2016-08-25 2018-03-09 天津市有为印刷包装有限公司 一种易降解的防水纸及其制备方法

Also Published As

Publication number Publication date
US4844777A (en) 1989-07-04
DE3569991D1 (en) 1989-06-08
JPH0648364B2 (ja) 1994-06-22
ATE42839T1 (de) 1989-05-15
ES2001125A6 (es) 1988-04-16
EP0213231B1 (fr) 1989-05-03
JPS62111252A (ja) 1987-05-22

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