EP0213231B1 - Substrat en papier résistant à l'eau, pour couches photographiques - Google Patents
Substrat en papier résistant à l'eau, pour couches photographiques Download PDFInfo
- Publication number
- EP0213231B1 EP0213231B1 EP85111135A EP85111135A EP0213231B1 EP 0213231 B1 EP0213231 B1 EP 0213231B1 EP 85111135 A EP85111135 A EP 85111135A EP 85111135 A EP85111135 A EP 85111135A EP 0213231 B1 EP0213231 B1 EP 0213231B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- paper support
- support according
- paper
- resistant paper
- 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.)
- Expired
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 and a base paper with a reactive sizing agent and an aluminum compound.
- Water-proof coated photographic paper supports are known in various embodiments. Papers provided with extruded polyolefin layers have found wide application.
- DE-OS 3 022 451, DE-OS 3 022 709 and DE-OS 3 410 797 describe paper supports 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 to the surface of the resin layer either directly or after previously applying an adhesion-promoting intermediate layer.
- These photographic layers are preferably layers which are known under the term silver salt photography and are used to produce black-and-white or color images.
- DE-OS 3 046 130 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.
- EP-A 0 114 973 a base paper sized with an alkyl ketene dimer, water-insoluble aluminum stearate, gelatin and a polyamide epichlorohydrin resin is coated on both sides with a barrier layer and then a coating curable by electron beams is applied on one side.
- a coating curable by electron beams is applied on one side.
- 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 thus has all the known advantages of the papers provided with these coatings, but which has no effect on the sensitivity of the overlying photographic layers even after a long storage period and does not cause fog in the photographic layers.
- 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 / m 2 (preferably 15 to 25 g / m2 ).
- the hardenable mixture is applied using known coating methods, e.g. according to DE-OS 3 022 709.
- 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. Sizing with reactive sizing agents significantly reduces the bath penetration at the edges of the paper carrier during the photographic process compared to acid-sized paper carriers 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 / cm (preferably 150 to 170 g / cm 2 ) and can be produced exclusively from cellulose fibers or from mixtures of cellulose fibers with synthetic fibers.
- additives e.g. 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 adversely affect 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 value to values less than 5 leads to a deterioration in the sizing and is expressed e.g. by deeper penetration into the paper during the photographic process.
- Increasing the pH to values above 8 leads to 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 amount of layers applied was approximately 20 g / m 2 .
- the coating was then cured under nitrogen using electron beams using an energy dose of 4 Mrad.
- the base papers produced therefrom were coated on one side with the curable layer described in Example 1.
- the amount of coating applied was approx. 20 g / m 2.
- the coating was cured under nitrogen using electron beams using an energy dose of 4 Mrad.
- the base papers thus obtained were coated on one side with the curable layer described in Example 1.
- the amount of layers applied was approximately 20 g / m 2 .
- 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 H 2 S0 4 (the quantities given are based on the aluminum ion content):
- 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 base papers thus obtained were transferred on one side with the curable layer described in Example 1.
- the amount of coating applied was cured under nitrogen by means of 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 was coated on one side with the curable layer described in Example 1.
- the amount of coating applied was approx. 20 g / m 2.
- 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 so far to provide a stripping device for the excess impregnation solution.
- 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 / m 2 .
- test specimens were removed and the photographic papers which had been in contact with the test specimens were exposed and developed to a medium shade of gray.
- Table 1 shows the difference, A D, of the two values, which means that the gray tone becomes darker due to the contacts with the test sheets.
- Table 2 shows that the values for reference numerals 4a to 4h, which are in the range of pH values according to the invention, show little bath penetration. The bath penetration depth becomes greater at pH values less than 5.
- 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.
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)
Claims (8)
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 EP0213231A1 (fr) | 1987-03-11 |
EP0213231B1 true 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) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0362823B1 (fr) * | 1988-10-04 | 1996-07-03 | Fuji Photo Film Co., Ltd. | Papier pour des applications photographiques |
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 |
WO2011039384A1 (fr) * | 2009-10-02 | 2011-04-07 | Oriol Gracia Grandia | 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 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0114973A2 (fr) * | 1983-01-03 | 1984-08-08 | Felix Schoeller jr Foto- und Spezialpapiere GmbH & Co. KG | Papier photographique résistant à l'eau |
Family Cites Families (22)
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 |
DE1270943B (de) * | 1964-01-15 | 1968-06-20 | Eastman Kodak Co | Verfahren zur Herstellung von nassfesten, formaldehydfreien Papieren |
US3592731A (en) * | 1968-10-24 | 1971-07-13 | Eastman Kodak Co | Photographic paper comprising a cationic amino aldehyde resin and a cationic polyamide-epichlorohydrin resin and an anionic polyacrylamide dry strength resin and method for its manufacture |
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 |
DE2344367C2 (de) * | 1973-09-03 | 1983-09-15 | Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück | Verfahren zur Herstellung eines fotografischen Papierschichtträgers, der mit einem Polyolefin beschichtet ist |
US4133688A (en) * | 1975-01-24 | 1979-01-09 | Felix Schoeller, Jr. | Photographic carrier material containing thermoplastic microspheres |
JPS54147211A (en) * | 1978-05-10 | 1979-11-17 | Mitsubishi Paper Mills Ltd | Paper producing method |
JPS54147204A (en) * | 1978-05-10 | 1979-11-17 | Mitsubishi Paper Mills Ltd | Paper making method |
DE3022451A1 (de) * | 1980-06-14 | 1982-01-07 | Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück | Wasserfestes fotografisches papier |
DE3022709A1 (de) * | 1980-06-18 | 1982-01-07 | Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück | Wasserfestes fotografisches papier und verfahren zu seiner herstellung |
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 |
JPS5868744A (ja) * | 1981-10-21 | 1983-04-23 | Fuji Photo Film Co Ltd | 写真印画紙用支持体 |
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 |
JPS58169598A (ja) * | 1982-03-26 | 1983-10-06 | 富士写真フイルム株式会社 | 写真印画紙用支持体の製造方法 |
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 |
DE3400125C2 (de) * | 1984-01-04 | 1986-01-23 | Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück | Verfahren zur Herstellung Photographischer Papierträger |
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 |
-
1985
- 1985-09-04 EP EP85111135A patent/EP0213231B1/fr not_active Expired
- 1985-09-04 AT AT85111135T patent/ATE42839T1/de not_active IP Right Cessation
- 1985-09-04 DE DE8585111135T patent/DE3569991D1/de not_active Expired
-
1986
- 1986-08-25 US US06/899,971 patent/US4844777A/en not_active Expired - Fee Related
- 1986-09-03 ES ES8601591A patent/ES2001125A6/es not_active Expired
- 1986-09-04 JP JP61206954A patent/JPH0648364B2/ja not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0114973A2 (fr) * | 1983-01-03 | 1984-08-08 | Felix Schoeller jr Foto- und Spezialpapiere GmbH & Co. KG | Papier photographique résistant à l'eau |
Also Published As
Publication number | Publication date |
---|---|
US4844777A (en) | 1989-07-04 |
ATE42839T1 (de) | 1989-05-15 |
JPS62111252A (ja) | 1987-05-22 |
ES2001125A6 (es) | 1988-04-16 |
JPH0648364B2 (ja) | 1994-06-22 |
EP0213231A1 (fr) | 1987-03-11 |
DE3569991D1 (en) | 1989-06-08 |
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