RO94287B1 - Paper for protecting photosensitive materials and process for obtainng the same - Google Patents

Paper for protecting photosensitive materials and process for obtainng the same

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Publication number
RO94287B1
RO94287B1 RO121646A RO12164685A RO94287B1 RO 94287 B1 RO94287 B1 RO 94287B1 RO 121646 A RO121646 A RO 121646A RO 12164685 A RO12164685 A RO 12164685A RO 94287 B1 RO94287 B1 RO 94287B1
Authority
RO
Romania
Prior art keywords
photosensitive materials
paper
protection
cellulose
obtainng
Prior art date
Application number
RO121646A
Other languages
Romanian (ro)
Other versions
RO94287A2 (en
Inventor
MIHAI SîRBU
Cornel Matei
Mihai Timofte
Virgil Mireanu
Original Assignee
Institutul De Cercetare Si Proiectare Pentru Fibre Artificiale
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 Institutul De Cercetare Si Proiectare Pentru Fibre Artificiale filed Critical Institutul De Cercetare Si Proiectare Pentru Fibre Artificiale
Priority to RO121646A priority Critical patent/RO94287B1/en
Publication of RO94287A2 publication Critical patent/RO94287A2/en
Publication of RO94287B1 publication Critical patent/RO94287B1/en

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Abstract

Inventia se refera la o hîrtie pentru protectia materialelor fotosensibile, cu comportare fotochimica neutra si inactiva din punct de vedere radioactiv, compatibila cu emulsia fotosensibila destinata protectiei materialelor fotosensibile fata de penetrabilitatea luminii si variatiile de umiditate, constituita dintr-un strat suport cu continut de amestec de celuloza sulfat din rasinoase semiîncalzita tip Holerith si celuloza sulfat înalbita din foioase tip O cu continut limitat de fier, 20...60 ppm, negru microdis tip M, metilviolet, negru direct tip A sau O, rasina poliamin-poliamid-epiclorhidrina tip PPE si agenti de încleiere, care are depus un strat de polietilena fotografica aditivata cu 2% negru de fum si la un procedeu de obtinere a acesteia.The invention relates to a paper for the protection of photosensitive materials, with a neutral and radioactively inactive photochemical behavior, compatible with the photosensitive emulsion intended for the protection of the photosensitive materials against the light penetrability and humidity variations consisting of a carrier layer containing the mixture cellulose sulphate of Holerith semi-heated softwood cellulose and cellulose sulphate blasted iron oxide type O with limited iron content, 20 ... 60 ppm, micronized black type M, methylviolet, direct black type A or O, polyamine polyamide-epichlorohydrin resin PPE and glue agents, which has deposited a layer of photographic polythene with 2% black smoke and a process for obtaining it.

RO121646A 1985-12-31 1985-12-31 Paper for protecting photosensitive materials and process for obtainng the same RO94287B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO121646A RO94287B1 (en) 1985-12-31 1985-12-31 Paper for protecting photosensitive materials and process for obtainng the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO121646A RO94287B1 (en) 1985-12-31 1985-12-31 Paper for protecting photosensitive materials and process for obtainng the same

Publications (2)

Publication Number Publication Date
RO94287A2 RO94287A2 (en) 1988-06-30
RO94287B1 true RO94287B1 (en) 1988-07-01

Family

ID=20118748

Family Applications (1)

Application Number Title Priority Date Filing Date
RO121646A RO94287B1 (en) 1985-12-31 1985-12-31 Paper for protecting photosensitive materials and process for obtainng the same

Country Status (1)

Country Link
RO (1) RO94287B1 (en)

Also Published As

Publication number Publication date
RO94287A2 (en) 1988-06-30

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