EP0356531B1 - Support photographique en papier résistant à l'eau - Google Patents

Support photographique en papier résistant à l'eau Download PDF

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Publication number
EP0356531B1
EP0356531B1 EP88112205A EP88112205A EP0356531B1 EP 0356531 B1 EP0356531 B1 EP 0356531B1 EP 88112205 A EP88112205 A EP 88112205A EP 88112205 A EP88112205 A EP 88112205A EP 0356531 B1 EP0356531 B1 EP 0356531B1
Authority
EP
European Patent Office
Prior art keywords
paper support
polyacrylamide
photographic paper
support according
starch
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
EP88112205A
Other languages
German (de)
English (en)
Other versions
EP0356531A1 (fr
Inventor
Sigrid Dr. Kuhnhäuser
Robert Dr. 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
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 Felex Schoeller Jr and GmbH and Co KG filed Critical Felex Schoeller Jr and GmbH and Co KG
Priority to ES88112205T priority Critical patent/ES2042657T3/es
Priority to EP88112205A priority patent/EP0356531B1/fr
Priority to DE8888112205T priority patent/DE3882368D1/de
Priority to US07/384,177 priority patent/US5084347A/en
Priority to JP1194424A priority patent/JPH0277742A/ja
Publication of EP0356531A1 publication Critical patent/EP0356531A1/fr
Application granted granted Critical
Publication of EP0356531B1 publication Critical patent/EP0356531B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/54—Starch
    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/64—Inorganic compounds
    • 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
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
    • Y10T428/273—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.] of coating
    • Y10T428/277—Cellulosic substrate
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/3188—Next to cellulosic
    • Y10T428/31895—Paper or wood
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/3188—Next to cellulosic
    • Y10T428/31895—Paper or wood
    • Y10T428/31899—Addition polymer of hydrocarbon[s] only
    • Y10T428/31902—Monoethylenically unsaturated
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y10T428/31913—Monoolefin polymer

Definitions

  • the invention relates to a paper support coated on both sides with polyolefin for photographic layers.
  • waterproof photographic supports Due to the high demands of today's development processes, waterproof photographic supports have to be produced that are resistant to the penetration of developer and fixing solutions, as well as have other mechanical properties such as specific rigidity, splitting strength, breaking load etc.
  • Such a carrier material usually consists of a paper core with a polyolefin coating applied to both surfaces.
  • the top polyolefin coating layer to which a photosensitive emulsion layer is to be applied usually contains at least one white pigment to increase the sharpness of the photographic image.
  • the polyolefin layer can also contain color pigments and other additives such as dispersing aids, antioxidants and antistatic compounds.
  • the paper backing which is covered on both sides with water-impermeable polyolefin, is then protected on both surfaces against the action of treatment solutions, but is still exposed to the liquids at the edges.
  • the penetration of treatment liquids discolour due to the influence of air and light and thus reduce the value of the photographic support.
  • the paper core is "hard glued" in the mass.
  • the high molecular weight compounds that have been used for this include substances such as gelatin, oxidized starch and other starch derivatives, carboxymethyl cellulose, modified polyvinyl alcohols and other binders.
  • the surface of the base paper can be treated with the aid of an aqueous coating compound (coating solution) which, in addition to the abovementioned binders, can also contain other additives, such as, for example, B.
  • a coating solution can be applied to the surface of the paper using a size press, or other application methods can also be used, e.g. B. blade or rotary scraper method.
  • Starch has long been used primarily to improve the surface properties and as additional protection for the surface of the size-glued paper against external influences. Modified, degraded starches such as cationic, anionic or oxidized starches are used for the coating.
  • starch in the surface treatment (DE 25 15 823) ensures good adhesion between the paper support and the polyolefin layer, it leads however, with regard to edge penetration not to optimal results. In addition, other physical values, in particular the gap strength, are insufficient.
  • the process of DE-A 34 00 125 in which an ethylene-acrylic acid copolymer with an alkaline or ammoniacal adjustment to pH is used, also serves to improve the adhesion of the polyolefin films to the base paper which has already been hydrophopized in bulk and to avoid delamination in the subsequent processing stages 8.5 to 10 as an aqueous stable dispersion in combination with electrolytes, starch, starch derivatives, polyvinyl alcohol and optical brighteners applied to the paper surfaces, dried and then coated with polyolefin extrusion.
  • the object of the invention is therefore to develop a waterproof photographic support which, in addition to high splitting resistance, resistance to the penetration of photographic treatment liquids and good polyethylene adhesion, also has a good surface obtained by applying flake-free coating solution.
  • a waterproof photographic paper support made from a base paper coated on both sides with polyolefin and hydrophopized in the mass, which is provided with a coating which is an anionic, cationic or amphoteric polyacrylamide or a mixture thereof, modified starch and at least one soluble inorganic salt from the group of chlorides and sulfates of an alkali or alkaline earth metal.
  • the preferred weight ratio of polyacrylamide to modified, especially oxidized, starch is 1/3 to 3/1.
  • the paper core is produced in the usual way using a paper machine.
  • the pulp is sized in bulk using known sizing agents. These include Alkyl ketene dimers or fatty acids or salts of the fatty acids.
  • the pulp can contain fillers, pigments, optical brighteners, wet strength agents, antioxidants and other additives customary for the production of photographic supports.
  • the polyacrylamide used is an anionic, cationic, amphoteric polyacrylamide or a mixture of these.
  • the anionic polyacrylamide can e.g. B. a partially hydrolyzed product of polyacrylamide, an acrylamide-acrylic acid copolymer, an acrylamide / methacrylic acid copolymer, an acrylamide / maleic anhydride copolymer, an acrylamide / acrylic acid ether copolymer.
  • An anionic polyacrylamide with an anion content between 0% and 85% is preferred.
  • the cationic polyacrylamide can e.g. B. a degradation product of polyacrylamide, a reaction product of polyacrylamide with polyethyleneimine, a copolymer of acrylamide with a cationic monomer.
  • the amphoteric polyacrylamide is a polyacrylamide that contains both anionic groups and cationic groups in the macromolecule.
  • the anionic groups are carboxylate or alkali carboxylate groups.
  • the cationic groups can be any cationic groups such as quaternized or protonated alkylaminoalkylene acrylate or alkylaminoalkylene acrylamide groups.
  • the modified starch used here can be an esterified, etherified, acid-hydrolytically or enzymatically degraded starch or oxidized starch.
  • the esterified starch can be, for example, a starch phosphate ester, starch acetate, citrate or formate.
  • the etherified starches for example, the alkyl starch ether, hydroxyalkyl starch ether, carboxyalkyl starch ether or allyl starch ether can be considered.
  • the acid hydrolytically degraded starch can be a starch degraded in the presence of acids such as hydrochloric acid, sulfuric acid or phosphoric acid.
  • the oxidized starch is a starch degraded by alkaline oxidation, and hypochlorite or periodate can serve as the oxidizing agent. According to the invention, the oxidized starch is preferred here.
  • the effect according to the invention is only achieved if soluble inorganic salts from the group of chlorides and sulfates of an alkali or alkaline earth metal are added to the aqueous solution, for example calcium chloride, magnesium chloride, sodium chloride, potassium chloride, magnesium sulfate, sodium sulfate, potassium sulfate or any mixtures thereof .
  • Sodium chloride is preferred according to the invention.
  • calcium and sodium chloride are used as a representative of all the salts specified above, but other salts also confirm the effect according to the invention.
  • the weight ratio salt / polyacrylamide is 2/3 to 2/1.
  • the mixture according to the invention is applied from an aqueous solution using known and customary application methods.
  • the total application amount is preferably 1.5 to 6 g / m2.
  • An aqueous pulp suspension (100% hardwood sulfate pulp, consistency: 4% freeness: 35 ° SR) was sized in bulk by adding: 2% by weight of anionic starch 0.75% by weight of anionic polyacrylamide 0.75% by weight of cationic polyacrylamide 0.60% by weight alkyl ketene dimer (Aquapel C 101, Herkules GmbH) 0.10% by weight of epoxidized fatty acid amide (Baysynthol CA 36 029, Bayer AG) 1.30% by weight of polyamide-polyamine-epichlorohydrin resin (Kymene 557 HP, Herkules GmbH)
  • coated papers were dried and coated with polyethylene for testing on a laboratory extruder (HDPE, density: 0.950 g / cm3, temperature: 295 ° C., contact pressure: 3.2 atm).
  • a base paper (170 g / m 2) produced as in Example 1 was sized with an aqueous coating composition according to Table 2 below.
  • the application quantity was approx. 3 ⁇ 0.25 g / m2.
  • the coated paper was dried and extrusion coated with polyethylene as in Example 1.
  • a base paper produced according to Example 1 was surface-sized with an aqueous coating master according to Table 3. The order quantity was 3 ⁇ 0.2 / m2. The coated paper was dried and extrusion coated with polyethylene according to Example 1.
  • a base paper produced according to Example 1 was surface-sized with an aqueous coating composition according to Table 4. The application quantity was 2.5 ⁇ 0.2 g / m2. The coated paper core was dried and extrusion coated with polyethylene according to Example 1.
  • Base paper produced as in Example 1 was surface-sized with an aqueous coating composition.
  • the composition of the coating composition is given in Table 6.
  • the application quantity was 2.5 ⁇ 0.2 g / m2.
  • the coated paper core was dried and extrusion coated with polyethylene as in Example 1.
  • Tables 6-8 The results of the tests described are summarized in Tables 6-8.
  • Table 6 shows the test results obtained on the paper samples produced according to the invention.
  • Tables 7 and 8 contain the results of the comparative examples.
  • V4 a 220 0.60 1.0 - V4 b 230 0.60 0.9 - V4 c 228 0.50 0.8 - V4 d 225 0.60 0.8 - V4 e 231 0.55 0.9 - V4 f 230 0.60 1.0 - V4 g 240 0.60 1.0 - V4 h 236 0.65 1.1 - V4 i 225 0.55 1.0 - V4 j 227 0.60 0.9 - V4 k 232 0.60 0.9 - V4 l 229 0.60 1.0 -

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)

Claims (8)

  1. Papier support photographique résistant à l'eau, formé d'un papier de base revêtu des deux côtés par une couche de polyoléfine et rendu hydrophobe dans la masse, qui est doté d'un revêtement contenant de l'amidon modifié et un électrolyte, caractérisé par le fait que le revêtement contient un polyacrylamide anionique, cationique ou amphotère, ou un mélange de tels polyacrylamides, et que l'électrolyte est au moins un sel minéral soluble choisi dans le groupe des chlorure et sulfates d'un métal alcalin ou alcalino-terreux.
  2. Papier support photographique résistant à l'eau selon la revendication 1, caractérisé par le fait que le polyacrylamide est un polyacrylamide anionique, et qu'il possède une proportion d'anions de 0% à 85%.
  3. Papier support photographique résistant à l'eau selon la revendication 1, caractérisé par le fait que l'amidon modifié est un amidon oxydé.
  4. Papier support photographique résistant à l'eau selon la revendication 1, caractérisé par le fait que le polyacrylamide et l'amidon modifié sont présents dans un rapport en poids de 1/3 à 3/1.
  5. Papier support photographique résistant à l'eau selon la revendication 1, caractérisé par le fait que la masse de revêtement est appliquée sur le papier de base dans une quantité totale de 1,5 à 6 g/m².
  6. Papier support photographique résistant à l'eau selon la revendication 1, caractérisé par le fait que le sel est le chlorure de calcium, le chlorure de magnésium, le chlorure de sodium, le chlorure de potassium, le sulfate de sodium, le sulfate de potassium ou un quelconque mélange de ceux-ci.
  7. Papier support photographique résistant à l'eau selon la revendication 1, caractérisé par le fait que le sel est le chlorure de sodium.
  8. Papier support photographique résistant à l'eau selon la revendication 1, caractérisé par le fait que le rapport en poids du sel au polyacrylamide est de 2/3 à 2/1.
EP88112205A 1988-07-28 1988-07-28 Support photographique en papier résistant à l'eau Expired - Lifetime EP0356531B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES88112205T ES2042657T3 (es) 1988-07-28 1988-07-28 Soporte de papel fotografico resistente al agua.
EP88112205A EP0356531B1 (fr) 1988-07-28 1988-07-28 Support photographique en papier résistant à l'eau
DE8888112205T DE3882368D1 (de) 1988-07-28 1988-07-28 Wasserfester fotografischer papiertraeger.
US07/384,177 US5084347A (en) 1988-07-28 1989-07-21 Water-resistant photographic paper support
JP1194424A JPH0277742A (ja) 1988-07-28 1989-07-28 耐水性の写真用紙支持体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88112205A EP0356531B1 (fr) 1988-07-28 1988-07-28 Support photographique en papier résistant à l'eau

Publications (2)

Publication Number Publication Date
EP0356531A1 EP0356531A1 (fr) 1990-03-07
EP0356531B1 true EP0356531B1 (fr) 1993-07-14

Family

ID=8199147

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88112205A Expired - Lifetime EP0356531B1 (fr) 1988-07-28 1988-07-28 Support photographique en papier résistant à l'eau

Country Status (5)

Country Link
US (1) US5084347A (fr)
EP (1) EP0356531B1 (fr)
JP (1) JPH0277742A (fr)
DE (1) DE3882368D1 (fr)
ES (1) ES2042657T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4425737C2 (de) * 1994-07-21 1998-01-08 Kaemmerer Gmbh Trennrohpapier mit silikathaltigen Primerstrichen und damit hergestelltes Trennpapier
FI123420B (fi) * 2006-09-25 2013-04-30 Teknologian Tutkimuskeskus Vtt Päällystetty paperi- tai kartonkituote ja menetelmä sen valmistamiseksi
US10407831B2 (en) 2014-09-04 2019-09-10 Kemira Oyj Sizing composition, its use and a method for producing paper, board or the like
CN109975471A (zh) * 2019-02-27 2019-07-05 海南医学院 一种重金属离子检测的信息图案化纸基传感器的制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2515823C2 (de) * 1975-04-11 1984-06-07 Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück Verfahren zur Herstellung eines durch Mikrowellenbehandlung zu trocknenden fotografischen Trägermaterials
JPS6017103B2 (ja) * 1981-03-24 1985-05-01 三菱製紙株式会社 印画紙用支持体
JPS57197539A (en) * 1981-05-29 1982-12-03 Fuji Photo Film Co Ltd Support for waterproof photographic paper
JPH0234371B2 (ja) * 1981-11-10 1990-08-02 Fuji Photo Film Co Ltd Shashiningashoshijitai
DE3400125C2 (de) * 1984-01-04 1986-01-23 Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück Verfahren zur Herstellung Photographischer Papierträger
DE3543597A1 (de) * 1985-12-10 1987-06-11 Schoeller F Jun Gmbh Co Kg Wasserfester fotografischer papiertraeger
DE3606806C1 (de) * 1986-03-03 1987-06-25 Schoeller F Jun Gmbh Co Kg Wasserfester fotografischer Papiertraeger

Also Published As

Publication number Publication date
EP0356531A1 (fr) 1990-03-07
JPH0277742A (ja) 1990-03-16
US5084347A (en) 1992-01-28
ES2042657T3 (es) 1993-12-16
DE3882368D1 (de) 1993-08-19

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