GB595360A - Improvements in photographic materials - Google Patents

Improvements in photographic materials

Info

Publication number
GB595360A
GB595360A GB9591/44A GB959144A GB595360A GB 595360 A GB595360 A GB 595360A GB 9591/44 A GB9591/44 A GB 9591/44A GB 959144 A GB959144 A GB 959144A GB 595360 A GB595360 A GB 595360A
Authority
GB
United Kingdom
Prior art keywords
emulsion
cellulose
acetate
dry
stripping
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
Application number
GB9591/44A
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.)
Kodak Ltd
Original Assignee
Kodak Ltd
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 Kodak Ltd filed Critical Kodak Ltd
Publication of GB595360A publication Critical patent/GB595360A/en
Expired legal-status Critical Current

Links

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
    • G03C1/74—Applying photosensitive compositions to the base; Drying processes therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/12—Stretch-spinning methods
    • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
    • D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/222—Stretching in a gaseous atmosphere or in a fluid bed
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/225—Mechanical characteristics of stretching apparatus
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/227—Control of the stretching tension; Localisation of the stretching neck; Draw-pins

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

595,360. Photographic dry-stripping material. KODAK, Ltd., SOPER, A. K., BERRIMAN, R. W., and DAVEY, E. P. May 18, 1944, No. 9591. [Class 98 (ii)] Dry-stripping sensitive material comprises a silver salt emulsion layer united to a temporary support by a dry-stripping layer, in which the binder of the emulsion is composed of at least 75 per cent by weight of one or more organic derivatives of cellulose which are insoluble in water at 20‹ C., but are permeable to processing solutions at that temperature. The emulsion may or may not have an overcoating layer. The cellulose derivative may comprise 90 per cent, or all of the binder. The processing solutions may contain softening agents. Material with a wax dry-stripping layer may be formed by coating the waxcoated temporary support coming from the usual drying chamber with emulsion and again passing through the heated chamber, without an intermediate cooling step. The cellulose derivative may be cellulose acetate, propionate, butyrate, acetate-propionate, acetate-butyrate, or acetate-phthalate, or ethyl cellulose. Partially hydrolysed cellulose acetate may be used. The cellulose derivative may be dispersed through a concentrated emulsion made with a small quantity of another binder. The permanent support is coated with lacquer (e.g. comprising cellulose nitrate, tricresyl phosphate, triphenyl phosphate, acetone and butyl acetate), which is dried and softened with a softening liquid (e.g. a mixture of methylated spirits with butyl alcohol), the emulsion side of the dry-stripping material pressed into contact therewith and the temporary support (e.g. paper) stripped off. The lacquer may contain titanium dioxide and the emulsion may contain a white or other pigment. The emulsion may be provided with a dyed or pigmented overcoating layer (e.g. of cellulose nitrate). The temporary support or dry-stripping layer may be dyed or pigmented or may serve as a filter if the emulsion is exposed by the reflex copying process while still on the temporary support. The emulsion may be transferred before or after exposure and before or after development. The material may be used to apply a pattern to ceramic material, the binder being burned away on firing. In example 1, the emulsion of example 3 of Specification 551,659 with a binder having a 90 per cent content of cellulose acetate-propionate of 19-26 per cent acetyl content is used. In example 2, an emulsion is prepared by pouring aqueous solutions of silver nitrate and of potassium bromide and iodide into an alcohol-water solution of cellulose acetate (23 per cent acetyl) and then adding a further quantity of cellulose acetate containing the mono-ethyl ether of ethylene glycol. Specifications 479,239, 529,041, 554,292, 554,298, 554,300, 554,301, 559,843, 595,356 and 595,361 also are referred to.
GB9591/44A 1942-07-29 1944-05-18 Improvements in photographic materials Expired GB595360A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US452749A US2334288A (en) 1942-07-29 1942-07-29 Apparatus for the treatment of artificial materials

Publications (1)

Publication Number Publication Date
GB595360A true GB595360A (en) 1947-12-03

Family

ID=23797771

Family Applications (3)

Application Number Title Priority Date Filing Date
GB12224/43A Expired GB569669A (en) 1942-07-29 1943-07-27 Improvements relating to apparatus for the stretching of textile filaments or threads
GB5448/45A Expired GB570646A (en) 1942-07-29 1943-07-27 Improvements in or relating to the stretching of textile filaments and threads
GB9591/44A Expired GB595360A (en) 1942-07-29 1944-05-18 Improvements in photographic materials

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB12224/43A Expired GB569669A (en) 1942-07-29 1943-07-27 Improvements relating to apparatus for the stretching of textile filaments or threads
GB5448/45A Expired GB570646A (en) 1942-07-29 1943-07-27 Improvements in or relating to the stretching of textile filaments and threads

Country Status (5)

Country Link
US (1) US2334288A (en)
BE (1) BE476574A (en)
DE (1) DE842523C (en)
FR (2) FR952702A (en)
GB (3) GB569669A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456384A (en) * 1946-06-04 1948-12-14 Du Pont Thermal-stretching apparatus for yarn
NL95582C (en) * 1953-08-06
BE544185A (en) * 1955-02-23
DE1156535B (en) * 1958-08-30 1963-10-31 Barmag Barmer Maschf Pull-off device for a crimping device for synthetic threads consisting of a stuffer box and pairs of conveyor rollers
CN114457484B (en) * 2022-02-22 2023-11-17 罗浩 Spinning stretching device based on eccentric rotation

Also Published As

Publication number Publication date
FR952702A (en) 1949-11-23
FR955702A (en) 1950-01-19
GB570646A (en) 1945-07-16
GB569669A (en) 1945-06-04
DE842523C (en) 1952-06-26
BE476574A (en)
US2334288A (en) 1943-11-16

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