EP0328756B1 - Basispapier für fotografische Schichtträger - Google Patents

Basispapier für fotografische Schichtträger Download PDF

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Publication number
EP0328756B1
EP0328756B1 EP88120390A EP88120390A EP0328756B1 EP 0328756 B1 EP0328756 B1 EP 0328756B1 EP 88120390 A EP88120390 A EP 88120390A EP 88120390 A EP88120390 A EP 88120390A EP 0328756 B1 EP0328756 B1 EP 0328756B1
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EP
European Patent Office
Prior art keywords
cationic
acrylamide
meth
paa
sizing agent
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 - Lifetime
Application number
EP88120390A
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German (de)
English (en)
French (fr)
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EP0328756A1 (de
Inventor
Robert Dr. Dipl.-Chem. Winiker
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.)
Felex Schoeller Jr and GmbH and Co KG
Original Assignee
Felex Schoeller Jr and GmbH and Co KG
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Application filed by Felex Schoeller Jr and GmbH and Co KG filed Critical Felex Schoeller Jr and GmbH and Co KG
Priority to AT88120390T priority Critical patent/ATE93977T1/de
Publication of EP0328756A1 publication Critical patent/EP0328756A1/de
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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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/76—Processes or apparatus for adding material to the pulp or to the paper characterised by choice of auxiliary compounds which are added separately from at least one other compound, e.g. to improve the incorporation of the latter or to obtain an enhanced combined effect
    • D21H23/765—Addition of all compounds to the pulp
    • 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
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/41—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
    • 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
    • D21H21/16—Sizing or water-repelling 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
    • 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

Definitions

  • the invention relates to a base paper for waterproof coated paper supports for photographic layers and a method for producing such a base paper for the production of layer supports.
  • US-A-4 654 386 relates to an aqueous dispersion of a dimeric ketene for papermaking which is stabilized with a polyacrylamide with cationic groups and optionally additionally contains an anionic dispersant.
  • This diketene dispersion is distinguished by excellent stability, with the polyacrylamide with cationic and optionally also anionic groups not having any disadvantages in terms of the intensity of the gluing.
  • a paper provided with water-impermeable resin layers on both surfaces is flatly protected against the ingress of water or aqueous photographic processing solutions, but not on the open edges.
  • the paper core of the laminate is exposed there.
  • Aqueous processing solutions can therefore penetrate into the paper core at the edges of the laminate and cannot be removed without residue by conventional washing processes.
  • the base paper In order to prevent or reduce this penetration of aqueous solutions on the edges of the laminate, the base paper is usually hard-sized. Both reactive substances, for example dimerized alkyl ketene, and non-reactive substances such as higher fatty acids are known as glue for photographic base papers. Reactive Sizing agents are usually processed with the use of a cationic resin without a pH change (neutral), while non-reactive sizing agents require an addition of aluminum ions and are processed acidic. DOS 32 38 865 also described a combination of these two sizing processes in order to better prevent the paper core from penetrating to protect the various components of photographic process solutions.
  • the sizing agents with a hydrophobic effect are usually mixed into the fiber suspension and deposited on the surface of the fibers by adding the auxiliaries.
  • an aid is, for example, an aluminum salt in the case of acidic sizing, for example a cationic polyamide-polyamine-epichlorohydrin resin in the case of neutral sizing, which is mainly used together with C16-C18 alkyl ketene dimer (J. Appl. Photographic Engineering 7. ( 1981), pp.67-72).
  • other cationic substances such as cationic polyacrylamides, cationized starches or polyethyleneimines are also suitable in certain cases for improving the retention and for fixing reactive sizing agents in the paper sheet.
  • sizing agents are deposited on the surface of the pulp fibers, the fiber-fiber bond is naturally weaker in a sized paper than in a non-sized paper. Therefore, water-soluble resins are widely used to improve paper strength.
  • resins include polyvinyl alcohol, anionic polyacrylamide, guar resin and various starch derivatives.
  • DE-OS 32 10 621 describes, for example, the use of anionic polyacrylamide together with cationic starch.
  • anionic polyacrylamide is used together with cationic polyacrylamide
  • DE-OS 33 28 463 describes a combination of cationic resin with anionic polysaccharide derivatives.
  • the addition of these hardening resins also serves the purpose of reducing the discoloration of the edges by developers.
  • a disadvantage of hard sizing of the base paper is not only the loss of strength, the drop in structural strength of laminates being particularly harmful. It also proves to be disadvantageous that the use of flocculent additives adversely affects the formation of the sheet (formation). This is due to the fact that the addition of cationic substances not only retains the glue on the fiber surface, but also inevitably and despite countermeasures taken by mechanical engineering, fiber flocks develop because the repulsive negative charges of the fibers are largely neutralized by the cationic substances and fiber-fiber -Bridging can be facilitated. The fiber flakes have different sizes and distributions in the paper sheet, depending on the materials used and the mechanical devices, and determine the homogeneity and surface quality of the base paper. The structure once created in the paper sheet cannot be changed even by strong calendering.
  • DE-OS 32 10 621, DE-OS 32 16 840, DE-OS 33 28 463 and finally DE-Patent 36 06 806 has resulted in a reduction in bath penetration at the cut edges achieved, the problem of the formation, the surface quality and the structural strength received little attention. These two points were only taken into account in DE patent 36 06 806 in connection with acid sizing.
  • nonionic polymers e.g. B. starch, polyvinyl alcohol or guar. This did lead to a certain improvement in sheet formation and surface quality; however, the retention of these substances was significantly poorer, the production speed had to be reduced, and when the photographic process solutions were used, the internal strength was noticeably reduced. The edges of the coated substrate split under the influence of the photographic process solutions.
  • Another object of the invention is to propose a method for producing a base paper for photographic supports, according to which the values mentioned are improved both when using so-called acid sizing and so-called neutral sizing, and avoiding undesirable fluctuations in these properties and edge penetration will. Fluctuations in the number of surfaces and edge penetration of more than ⁇ 5% and the internal strength of more than ⁇ 6% are considered to be undesirable fluctuations based on the mean value.
  • a base paper for photographic supports which contains at least one hydrophobizing sizing agent, at least one wet-strengthening cationic resin and a polyacrylamide, the polyacrylamide being an amphoteric poly (meth) acrylamide in the form of a copolymer which is at least 40 mol% acrylamide - And / or methacrylamide groups, the molar ratio of the amide component to the sum of the anionic and cationic groups in the range 60:40 to 95: 5 and the ratio of the number of cationic groups to the number of anionic groups between 10: 1 and 1: 2 and the amphoteric poly (meth) acrylamide is contained in an amount of 0.3 to 3% by weight, based on the fiber.
  • hydrophobic sizing agents are both reactive sizing agents such as dimerized alkyl ketene, epoxidized fatty acid amides or fatty acid anhydrides and non-reactive sizing agents such as higher fatty acids (e.g. stearic acid) and salts of higher fatty acids.
  • a particularly preferred dimerized alkyl ketene consists of at least 50% behenyl ketene or another Alkyl ketene with more than 18 carbon atoms in the alkyl radical.
  • two or more hydrophobizing sizing agents are contained in the paper. It can be reactive with non-reactive sizing agents be combined.
  • a preferred combination is, for example, a combination of alkyl ketene dimer and fatty acid, but a combination of epoxidized fatty acid amide and fatty acid is also possible within the scope of the invention.
  • a cationic resin is any resin with cationic groups commonly used in papermaking as a wet strength agent. Such resins are usually used for wet strengthening and for the retention of reactive sizing agents. According to the invention, however, they are used both in combination with reactive and with non-reactive sizing agents.
  • the cationic resin is an epichlorohydrin modified polyamine or polyamide amine resin.
  • Other suitable resins are urea / formaldehyde resins, melamine / formaldehyde resins, polyethyleneimines and polyethyleneimine derivatives.
  • the third component relevant to the success of the invention, the amphoteric polyacrylamide is a polyacrylamide which contains both anionic groups and cationic groups in the macromolecule.
  • the anionic groups are carboxyl or alkali carboxylate groups.
  • the cationic groups can be any cationic groups.
  • preferred cationic groups are quaternized or protonated alkalyaminoalkylene (meth) acrylate or alkylaminoalkylene (meth) acrylamide groups, with quaternization preferably taking place with dimethyl sulfate or methyl chloride and salts of the protonated form preferably being sulfuric or hydrochloric acid salts.
  • the introduction of the cationic groupings into a poly (meth) acrylamide is usually carried out by copolymerization in the presence of appropriate cationic ones
  • Monomers for example dialkylaminoalkylene (meth) acrylate or dialkylaminoalkylene (meth) acrylamide in the form of acid salts or in quaternized form.
  • a suitable cationic comonomer is also dimethyldiallylammonium chloride.
  • Cationic groups can also be formed by reacting Mannich or Hoffmann polyacrylamide or by transamination with polyamine.
  • the anionic groups in the amphoteric polyacrylamide are either the result of a copolymerization in the presence of e.g. B. (meth) acrylic acid or its salts or the result of hydrolysis of acrylamide groups or copolymerized (meth) acrylic acid esters.
  • the molecular weight of the amphoteric polyacrylamide is in the range from 100,000 to 2,000,000, preferably between 500,000 and 1,500,000.
  • the polyacrylamide (PAA) is a modified polyacrylamide or polymethacrylamide which has at least 40 mol% of acrylamide and / or methacrylamide groups, the molar ratio of the amide component to the sum of the anionic and cationic groups being in the range from 60:40 to 95: 5 .
  • the ratio of the number of cationic groups to the number of anionic groups is between 10: 1 and 1: 2.
  • the poly (meth) acrylamide used can contain up to 10 mol% of a fourth comonomer (e.g. acrylic acid ester, vinyl ester or the like) contain.
  • the amount used according to the invention is 0.3-3% by weight, based on the fiber material.
  • Papers sized and strengthened according to the invention can contain all other usual paper additives such as pigments, dyes, fillers, optical brighteners, antioxidants or portions of synthetic fiber material without the advantages according to the invention being lost.
  • the various components can be added to the pulp suspension in a different order and at different locations known to the paper manufacturer.
  • Fatty acid, fatty acid anhydrides and aluminum compounds are usually added immediately after the pulp fibers have been ground, while reactive sizing agents are metered into the pulp suspension relatively shortly before being fed to the paper machine.
  • the amphoteric polyacrylamide can be added to both the so-called thick stock and the so-called thin stock in the course of the paper production.
  • the order of addition of the three components important in the context of the invention can be different. In principle, any order is possible.
  • the amphoteric polyacrylamide is mixed into the fiber suspension in the order before the cationic resin. Otherwise, the paper-making rules known to the person skilled in the art apply.
  • a mixture of 90% by weight hardwood sulfate pulp and 10% by weight softwood sulfate pulp was ground at a consistency of 4% to a freeness of 35 ° SR.
  • Sizing agents, amphoteric polyacrylamide (PAA), cationic resin and auxiliaries in accordance with Table 1 were then added to the pulp suspension and base papers of about 175 g / m 2 were made in a known manner from the suspensions diluted to about 1.2% by weight.
  • the papers were surface-sized in a likewise known manner with a solution containing 52 g / l oxidized starch, 20 g / l NaCl and 1 g / l whitening agent and smoothed in-line.
  • Table 1 Ingredients and quantities * according to example 1 sample 1.1 1.2 1.3 1.4 1.5 Stearic acid 1.0 1.0 1.0 1.0 1.0 1.0 1.0 amph. PAA Ia 1.0 - - - amph. PAA Ib - 1.0 - - - amph. PAA Ic - - 1.0 - - amph. PAA Id - - - 1.0 - amph.
  • Example 1 samples 1.6 to 1.8 without amphoteric PAA were produced as comparisons with the deviations 1.6 no polyacrylamide 1.7 with 1% cationic PAA 1.8 with 1% anionic PAA.
  • Example 2 Analogous to Example 1, base papers weighing approximately 175 g / m 2 were produced with the ingredients listed in Table 2.
  • Table 2 Ingredients and amounts according to example 2 sample 2.1 2.2 2.3 2.4 2.5 2.6 Na stearate 0.5 0.5 0.5 0.5 0.5 0.5 Na aluminate 0.5 0.5 0.5 0.5 0.5 0.5 amph.
  • PAA IIa 1.0 - - - - - amph.
  • PAA IIb - 1.0 - - - - amph.
  • PAA IIc - - 1.0 - - 0.5 amph.
  • PAA IV - - - - - 1.0 - anionic PAA (10 mol% - - - - - 0.5 anion. Groups) Alkyl ketene dimer 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Polyamide polyamine epichlo 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 rhydrin resin H2SO4 up to pH 5.5
  • Example 2 Analogous to Example 1, base papers weighing approximately 175 g / m 2 were produced with the ingredients shown in Table 4.
  • Table 4 Ingredients and amounts according to example 4 sample 4.1 4.2 4.3 4.4 4.5 4.6 Sodium stearate 0.5 0.5 0.5 0.5 0.5 - Al chloride 0.5 0.5 0.5 0.5 0.5 - amph.
  • PAA IIIc 1.5 2.0 2.5 - - 2.5 amph.
  • Example 2 Analogously to Example 1, two paper samples were produced using the technical teaching from DOS 32 16 841 with the following ingredients. sample 5.1 5.2 cation. PAA 1.0 2.5 Alkyl ketene dimer 0.6 0.6 Polyamide-polyamine-epichlorohydrin resin 0.5 0.5
  • the alkyl ketene dimer listed in the examples is a commercial product which is synthesized from a commercially available mixture of stearic acid and palmitic acid, that is to say predominantly carries C16-alkyl radicals.
  • a ketene dimer is used which contains less than 40% hydrocarbon residues with less than 20 C atoms.
  • a preferred such ketene dimer is, for example, a behenyl ketene dimer.
  • the effect according to the invention is not limited to the basis weight of the base paper on which the examples are based and the cellulose types indicated.
  • the effect of adding amphoteric PAA is independent of the basis weight, the type of fiber and any other usual additives, for example fillers.
  • PAA III is a copolymeric polyacrylamide with 10 mol% dimethylaminopropylacrylamide, quaternized with methyl chloride, which contains different proportions of acrylic acid and
  • the structural strength was determined in accordance with TAPPI RC 308 with a Scott Bond gap strength tester (Internal Bond Impact Tester Model B).
  • the figures in the following tables are mean values from 5 individual measurements.
  • the figures in the following tables are mean values from 6 individual measurements.
  • Table 5 contains the papers of Examples 1 to 4 produced according to the invention, Table 6 the test results obtained on Comparative Examples 1 to 7.
  • test data contained in the tables are mean values from 5 or 6 individual measurements.
  • no fluctuations were observed which reached or even exceeded ⁇ 5% based on the mean.
  • the test values were surprisingly constant.
  • the fluctuations were sometimes ⁇ 10%, but in no case less than ⁇ 5%.
  • the decisive factor for the evaluation of the invention is the high surface quality in connection with a high structural strength.
  • the surface quality is expressed in the low number of surfaces, which even with a naturally poor mixture such as Example 3 still reaches a good level.
  • the good structural strength corresponds to the high "Scott bond values" in Table 5. Comparable systems from Table 6 are compared.

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)
EP88120390A 1988-02-16 1988-12-07 Basispapier für fotografische Schichtträger Expired - Lifetime EP0328756B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88120390T ATE93977T1 (de) 1988-02-16 1988-12-07 Basispapier fuer fotografische schichttraeger.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3804776 1988-02-16
DE3804776A DE3804776A1 (de) 1988-02-16 1988-02-16 Basispapier fuer fotografische schichttraeger

Publications (2)

Publication Number Publication Date
EP0328756A1 EP0328756A1 (de) 1989-08-23
EP0328756B1 true EP0328756B1 (de) 1993-09-01

Family

ID=6347501

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88120390A Expired - Lifetime EP0328756B1 (de) 1988-02-16 1988-12-07 Basispapier für fotografische Schichtträger

Country Status (6)

Country Link
US (1) US5032226A (enrdf_load_stackoverflow)
EP (1) EP0328756B1 (enrdf_load_stackoverflow)
JP (1) JP2804064B2 (enrdf_load_stackoverflow)
AT (1) ATE93977T1 (enrdf_load_stackoverflow)
AU (1) AU612783B2 (enrdf_load_stackoverflow)
DE (2) DE3804776A1 (enrdf_load_stackoverflow)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3804776A1 (de) 1988-02-16 1989-08-24 Schoeller F Jun Gmbh Co Kg Basispapier fuer fotografische schichttraeger
US5178992A (en) * 1989-09-01 1993-01-12 Fuji Photo Film Co., Ltd. Method for processing silver halide color photographic material
GB9215422D0 (en) * 1992-07-21 1992-09-02 Hercules Inc System for sizing paper and cardboard
JP3093965B2 (ja) * 1994-12-28 2000-10-03 日本製紙株式会社 吸水性を改良した印刷用紙及び新聞印刷用紙
WO1998006898A1 (en) * 1996-08-15 1998-02-19 Hercules Incorporated Amphoteric polyacrylamides as dry strength additives for paper
US5935383A (en) * 1996-12-04 1999-08-10 Kimberly-Clark Worldwide, Inc. Method for improved wet strength paper
ID22290A (id) * 1996-12-04 1999-09-30 Kimberly Clark Co Metoda untuk pembuatan kertas yang kuat pada saat basah
WO1998036127A1 (en) * 1997-02-14 1998-08-20 Cytec Technology Corp. Papermaking methods and compositions
US6673205B2 (en) * 2001-05-10 2004-01-06 Fort James Corporation Use of hydrophobically modified polyaminamides with polyethylene glycol esters in paper products
US20050178517A1 (en) * 2002-03-28 2005-08-18 Tomoyuki Nakano Bulky paper
DE10222454B4 (de) * 2002-05-22 2004-04-15 Felix Schoeller Jr. Foto- Und Spezialpapiere Gmbh & Co. Kg Ink-Jet-Aufzeichnungsblatt mit verbesserter Ozonresistenz
DE10309705B4 (de) * 2003-03-06 2005-03-24 Felix Schoeller Jr. Foto- Und Spezialpapiere Gmbh & Co. Kg Ink-Jet Aufzeichnungsblatt mit verbesserter Ozon-und Lichtstabilität
JP4688014B2 (ja) * 2003-06-30 2011-05-25 荒川化学工業株式会社 製紙用添加剤および当該製紙用添加剤を用いた紙
US7732525B2 (en) * 2004-05-20 2010-06-08 Ciba Specialty Chemicals Water Treatments Limited Polymers for paper and paperboard coatings
FI126610B (en) * 2015-01-27 2017-03-15 Kemira Oyj Particulate polymer product and its use
AU2017322438B2 (en) * 2016-09-07 2021-01-28 Kemira Oyj Method for manufacture of paper, board or the like and use of the composition
AU2019300405A1 (en) 2018-07-12 2021-01-07 Kemira Oyj Method for manufacturing multi-layered fibrous web and multi-layered fibrous web

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3328463A1 (de) * 1983-08-06 1985-02-21 Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück Fotografischer papiertraeger

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US2884058A (en) * 1955-05-02 1959-04-28 American Cyanamid Co Cellulose web of improved dry strength containing a polymer comprising carboxylic groups, amide groups, and quaternary ammonium groups and method for producing same
JPS6017103B2 (ja) * 1981-03-24 1985-05-01 三菱製紙株式会社 印画紙用支持体
JPS57185432A (en) * 1981-05-11 1982-11-15 Fuji Photo Film Co Ltd Support for use in photographic paper
JPS57197539A (en) * 1981-05-29 1982-12-03 Fuji Photo Film Co Ltd Support for waterproof photographic paper
JPS5845730A (ja) * 1981-09-11 1983-03-17 Seiko Kagaku Kogyo Co Ltd 置換コハク酸無水物の水性分散液、その製造方法、及び該置換コハク酸無水物の水性分散液からなる製紙用サイズ剤
US4533434A (en) * 1981-09-11 1985-08-06 Seiko Kagaku Kogyo Co., Ltd. Process for sizing paper and process for making plasterboard base paper sized thereby
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
JPH0678463B2 (ja) * 1984-06-04 1994-10-05 日本ピー・エム・シー株式会社 ケテンダイマー系水性分散液
US4654386A (en) * 1985-09-04 1987-03-31 Dic-Hercules Chemicals, Inc. Ketene dimer-acrylamide polymer aqueous dispersion
DE3606806C1 (de) * 1986-03-03 1987-06-25 Schoeller F Jun Gmbh Co Kg Wasserfester fotografischer Papiertraeger
DE3804776A1 (de) 1988-02-16 1989-08-24 Schoeller F Jun Gmbh Co Kg Basispapier fuer fotografische schichttraeger

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3328463A1 (de) * 1983-08-06 1985-02-21 Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück Fotografischer papiertraeger

Also Published As

Publication number Publication date
AU612783B2 (en) 1991-07-18
JP2804064B2 (ja) 1998-09-24
DE3804776A1 (de) 1989-08-24
DE3804776C2 (enrdf_load_stackoverflow) 1990-02-01
JPH025040A (ja) 1990-01-09
AU2975489A (en) 1989-08-17
US5032226A (en) 1991-07-16
EP0328756A1 (de) 1989-08-23
ATE93977T1 (de) 1993-09-15
DE3883742D1 (de) 1993-10-07

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