[go: up one dir, main page]

US2333809A - Antihalation film - Google Patents

Antihalation film Download PDF

Info

Publication number
US2333809A
US2333809A US415590A US41559041A US2333809A US 2333809 A US2333809 A US 2333809A US 415590 A US415590 A US 415590A US 41559041 A US41559041 A US 41559041A US 2333809 A US2333809 A US 2333809A
Authority
US
United States
Prior art keywords
layer
dye
antihalation
cellulose
photographic
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
US415590A
Other languages
English (en)
Inventor
Gale F Nadeau
Clark J Smith
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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
Priority to FR956729D priority Critical patent/FR956729A/fr
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to US415590A priority patent/US2333809A/en
Application granted granted Critical
Publication of US2333809A publication Critical patent/US2333809A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • G03C1/825—Photosensitive materials characterised by the base or auxiliary layers characterised by antireflection means or visible-light filtering means, e.g. antihalation
    • G03C1/835—Macromolecular substances therefor, e.g. mordants
    • 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
    • Y10S430/155—Nonresinous additive to promote interlayer adhesion in element

Definitions

  • FIG. 2 5w .sf/vs/r-/vf LA YER 14 gmmm GREEN .sens/wv@ Arf/r l5 mi@ RED sENs/r/vs LAYER 6 ceuumsf ESTER .suf/mr '0 sues/Na LAYER @LE ARNADEAU v D. LACK CLARK J. SMITH ATfoRNYs Patentes Nov. e, i
  • Light-absorbing coatings on the backs of photographic iilms are well known in the art of halation prevention.
  • these antihalation coatings consist of a carrier material and a light. absorbing material such as a 4dye or pigment, and are removable or non-removable according to the solubility characteristics of the carrier material.
  • the coatings I are applied, as a rule, to the rear side of a lm support which may be a cellulosel ester, a synthetic resin, or other material.
  • ff Coatings on the backs of lms containing a dye or a superficial dye layer removable in photographic processing solutions are well known for antihalation purposes.
  • antihalaticn layers which are designed to be nonremovable in aqueous or alkaline photographic processing solutions.
  • the disadvantages of the removable types of coatings are the tendency of some coatings to deposit sludge in processing solutions, the tacky nature of some coatings, the known thermo-plastic qualities of other coatings which are in general undesirable, and vfurthermore, in the case of certain resinous coatings their tendency to form insoluble products with the antlhalation dye.
  • Non-removable antihalation layers have been designed to avoid the dimculties and to a certain extent prevent the penetration of the dye into and the subsequent staining of the support. 'I'he success of this practice depends upon the selection of a material, for the dye carrier, which is suiilciently permeable to processing solutions, yet not soluble, that the dye giving antihalaticn protection may be completely discharged when desired.
  • the object of the present invention is therefore, to provide 'photographic lms with antihalation backlngs of water-permeable cellulose esters containing a surface-active agent and a light-absorbing material, the surface-active agent cooperating with the carrier material to prevent base stain.
  • lSurface-active agents representative oi' the anionic type useful in the backlngs of our invention, are the commercial products, Arctic Syntex T, Igepon T, (alkyl sodium taurides) 'etc., described in thepprior U. S. Patent No. 2,139,778 for usein static prevention.
  • Other agents of this type are sodium alkyl sulfates, such as Gardinol, and sodium sulpho di-alkyl succinates such as Aerosol AY (sodium sulpho di-amyl succinate) and Aerosol OT (sodium sulpho-di-octyl succinate).
  • Example 1 An vantihalation backing can be prepared by applying the following solution of cellulose acetate phthalate to a support such as cellulose acetate propionate or cellulose nitrate:
  • a surface-active agent such as Aerosol AY, in the amount of from about 1 per cent to about 5 per cent of the weight of the solution.
  • a dye solution containing a dye such as Acid Blue 3R, or other fugitive dye, in suitable amounts to obtain the desired density in the backing layer, from a solvent combination consisting of 90 per cent methyl alcohol and per cent water.
  • the surface-active agent may be applied in the dye solution instead of in the carrier coating solution.
  • a cellulose acetate propionate lm support may be coated with a solution of the following composition:
  • Example 3 A film base may be coated with a solution of the composition shown in Example 2 except that a more extensively hydrolyzed cellulose ester, such as cellulose acetate propionate (15.9 per cent acetyl and 5.3 per cent propionyl) may be used instead of cellulose acetate.
  • a more extensively hydrolyzed cellulose ester such as cellulose acetate propionate (15.9 per cent acetyl and 5.3 per cent propionyl
  • the dye solution of Example 1 may also be used for coloring this layer.
  • carrier materials in the antihalation backing layers prepared in the manner of our invention other water-permeable but water-insoluble cellulose organic acid esters may be used, such as those disclosed in Nadeau and Slack U. S. Patents 2,289,799, granted July 14, 1942 and 2,311,073, granted February 16, 1943.
  • organic acid esters may be used in the present invention for eifecting adhesion between waterswellable carriers containing a surface-active agent and a light-absorbing material, and said supports.
  • light-absorbing materials fugitive dyes and mixtures of fugitive dyes, are suitable.
  • Fig. 1 shows 4a cellulose ester lm support I0
  • a color ilm constructed in this general manner may contain intermediate lter and masking
  • the emulsions may also contain color-forming compounds developable to colored images in a known manner, or may be sensitized to different regions of the spec'- trum and be4 colored complementary to their sensitivity for the production of colored images by well-known bleach-out processes.
  • Films carrying emulsion layers of these types are disclosed y in the prior patent Mannes and Godowsky U. S.
  • a photographic film comprising a cellulose ester support having on one side thereof a lightsensitive emulsion layer, and on the opposite side,
  • a photographic film comprising a cellulose ester support having on one side thereof a lightsensitive emulsion layer, and on the opposite side an antihalation layer of a cellulose organic acid ester permeable but not soluble in photographic processing solutions, containing an anion surface-active'agent and a light-absorbing material.
  • a photographic film comprising a cellulosel ester support having on one side thereof a lightsensitive emulsion layer, and on the opposite side an antihalation layer of a cellulose organic acid ester permeable but not soluble in a photographic developing solution, containing sodium sulpho di-arnyl succinate and a. light-absorbing material.
  • a photographic nlm comprising a cellulose ester support having on one side thereof a lightsensitive emulsion layer, and on the opposite side an antihalation layer of a cellulose organic acid ester permeable but lnot soluble in photographic processing solutions, containing a cation surfaceactive agent and a light-absorbing material.
  • a photographic film comprising a cellulose ester support having on one side thereof a lightsensitive emulsion layer, and on the opposite side an antlhalation layer of a cellulose organic acid ester permeable but not soluble in photographic processing solutions, containing dimethyl cetyl benzyl ammonium chloride and a light-absorbing material.
  • a photographic iilm comprising a, cellulose ester support having on one side thereof 'a lightsensitive emulsion'layer, and on the opposite side an antihalation layer of a cellulose organic acid ester permeable but not soluble in a photographic developing solution, containing an ether of polyethylene glycol and a light-absorbing material.

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Laminated Bodies (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
US415590A 1941-10-18 1941-10-18 Antihalation film Expired - Lifetime US2333809A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR956729D FR956729A (es) 1941-10-18
US415590A US2333809A (en) 1941-10-18 1941-10-18 Antihalation film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US415590A US2333809A (en) 1941-10-18 1941-10-18 Antihalation film

Publications (1)

Publication Number Publication Date
US2333809A true US2333809A (en) 1943-11-09

Family

ID=23646324

Family Applications (1)

Application Number Title Priority Date Filing Date
US415590A Expired - Lifetime US2333809A (en) 1941-10-18 1941-10-18 Antihalation film

Country Status (2)

Country Link
US (1) US2333809A (es)
FR (1) FR956729A (es)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2719087A (en) * 1953-05-25 1955-09-27 Eastman Kodak Co Light-sensitive photographic paper and composition
US3365293A (en) * 1963-06-06 1968-01-23 Geigy Ag J R Photographic diazotype films comprising fluorescent ultraviolet absorbers
US3424584A (en) * 1964-06-10 1969-01-28 Polaroid Corp Abrasion of the outer surfaces of film supports and rupturable containers to reduce blocking

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2719087A (en) * 1953-05-25 1955-09-27 Eastman Kodak Co Light-sensitive photographic paper and composition
US3365293A (en) * 1963-06-06 1968-01-23 Geigy Ag J R Photographic diazotype films comprising fluorescent ultraviolet absorbers
US3424584A (en) * 1964-06-10 1969-01-28 Polaroid Corp Abrasion of the outer surfaces of film supports and rupturable containers to reduce blocking

Also Published As

Publication number Publication date
FR956729A (es) 1950-02-06

Similar Documents

Publication Publication Date Title
US2448542A (en) Photographic elements having antihalation layers composed of vinylpyridine polymers and antihalation materials
US3607345A (en) Process for coating photographic emulsion layers
GB716080A (en) An improved method of coating strip material
US1994876A (en) Photographic film free from halation
US2732305A (en) Silver hal
US3146102A (en) Photographic multicolor diffusion transfer process using dye developers
US2271234A (en) Colloidal carbon antihalation layer
US2333809A (en) Antihalation film
US3850641A (en) Antistatic light-sensitive photographic material
US2518686A (en) Aldehyde antistain baths for developed color photographic material
US4427764A (en) Protective coating for silver halide photographic light-sensitive material
US1939171A (en) Photographic film base and coating therefor
US3361565A (en) Silver halide photographic element containing a polyanionic color former and a gelatin antiabrasion layer
GB738637A (en) Light-sensitive photographic elements and emulsions suitable for x-ray exposure
US2080019A (en) Hardening photographic emulsion
US2346078A (en) Antihalation protective layer
US4504572A (en) Gelatin silver halide photographic elements for tanning development
US3704154A (en) Process for producing photographic materials
EP0330401B1 (en) Method of processing silver halide photographic material
US3168402A (en) Photographic stripping film
US2713305A (en) Photographic dye transfer process
US2139767A (en) Buffered photographic film
US2703284A (en) Subbing photographic film
US2577127A (en) Photographic element with colloid layer containing color former and nonionic wettingagent
US2326056A (en) Antihalation film