US1973476A - Photographic stripping film - Google Patents
Photographic stripping film Download PDFInfo
- Publication number
- US1973476A US1973476A US702560A US70256033A US1973476A US 1973476 A US1973476 A US 1973476A US 702560 A US702560 A US 702560A US 70256033 A US70256033 A US 70256033A US 1973476 A US1973476 A US 1973476A
- Authority
- US
- United States
- Prior art keywords
- layer
- photographic
- film
- stripping
- water
- 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
Links
- 239000010410 layer Substances 0.000 description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 8
- 125000002252 acyl group Chemical group 0.000 description 7
- 239000000839 emulsion Substances 0.000 description 7
- 229920002678 cellulose Polymers 0.000 description 5
- 239000001913 cellulose Substances 0.000 description 5
- 229920002301 cellulose acetate Polymers 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 125000001931 aliphatic group Chemical group 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 description 3
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 2
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 2
- 229920008347 Cellulose acetate propionate Polymers 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229920001353 Dextrin Polymers 0.000 description 1
- 239000001828 Gelatine Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- FYGDTMLNYKFZSV-MRCIVHHJSA-N dextrin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)OC1O[C@@H]1[C@@H](CO)OC(O[C@@H]2[C@H](O[C@H](O)[C@H](O)[C@H]2O)CO)[C@H](O)[C@H]1O FYGDTMLNYKFZSV-MRCIVHHJSA-N 0.000 description 1
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Natural products CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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
- G03C1/805—Photosensitive materials characterised by the base or auxiliary layers characterised by stripping layers or stripping means
Definitions
- PHOTOGRAPHIC STRIPPING FILM Filed Dec. 15, 1933 5kbler permeable layer of cellulose 4'Sensifive layer aliphafic acid ester of low acyl value K (Hydrolyzed cellulose aceldle propionale) -supporflPaper) ZV-Sfrhaping layer(8oluble gelaflne I Y J ordexlrine amniotic ClzmlesRFordycemMaz'lblm dam-M1 Patented Sept. 11; 1934 PHOTOGRAPHIC STRIPPING FILM Charles R. Fordyce and Martti Salo, Rochester,
- This invention relates to photographic stripping film, that is to say, to a photographic film in which the sensitive layer is carried on a temporary support from which it may be stripped during or after usef
- the sensitive layer is carried on a water permeable layer or support to which it is permanently attached and which is in turn carried on a support 10 from which it is stripped and the invention consists in the use, in a stripping film, of a particular material as the permanent support.
- the reference character 1 designates the temporary support which may be of paper and which may or'may not be water permeable.
- This carries an adhesive layer 2, which may be of readily soluble gelatine or compositions comprising chiefly water soluble dextrine, and over this a layer 3 which is water permeable but not water soluble and, finally, a photographic emulsion 4, which is applied by usual photographic coating methods.
- the particular stripping layer is not of importance.
- the solution penetrates layers 3 and 4, and may also penetrate the layer 1, and softens or dissolves the layer 2 so that the layer 3 with the emulsion 4 adherent to it may be easily stripped from the support 1, and may be dried or may be placed on a glass plate or other surface for further use.
- cellulose aliphatic esters of low acyl content are eminently suitable. While they are readily penetrated by water, they are not distorted or disintegrated by the action of the water or other ordinary photographic solution and after drying constitute firm, smooth photographic records.
- Cellulose acetate of an acetyl value less than 36% may be used satisfactorily. The range between 33% and 36% is most practical from certain standpoints, because of difliculties in coating when the content is less than 33%.
- the permeability increases as the acetyl content grows less so that the film has increased advantages in the lower range.
- Another useful material is hydrolyzed cellulose acetate propionate, hydrolyzed to as low as 26% acetyl and from 4 to 5% propionyl.
- the layers just described may be formed by coating from solutions in which the solvents may be mixtures of acetone and methyl alcohol, ethylene chloride and methyl alcohol, or acetone and water; or ethylene glycol monomethyl ether, or mixtures of ethylene glycol monomethyl ether with ethylene dichloride and methyl alcohol. If the cellulose acetate composition is to be coated directly upon the water soluble layer, it will be necessary to use solvents which will not dissolve the latter. This may be coated directly upon the 30 paper support 1, previously coated with the water-soluble coating 2, or it may be formed as a separate film and laminated on the paper support.
- the solvents may be mixtures of acetone and methyl alcohol, ethylene chloride and methyl alcohol, or acetone and water; or ethylene glycol monomethyl ether, or mixtures of ethylene glycol monomethyl ether with ethylene dichloride and methyl alcohol.
- a stripping photographic film comprising, in order, a temporary support, a stripping layer,
- the photographic layer being permanently carried by the permeable layer and.
- the permeable layer comprising a cellulose aliphatic acid ester having a low acyl content.
- a stripping photographic film comprising, in order, a temporary support, a soluble layer, a water permeable layer and a photographic emulsion layer, the photographic layer being permanently carried by the permeable layer and the permeable layer comprising a cellulose acetate having an acyl content less than 36%.
- a stripping photographic film comprising, in order, a temporary support, a water soluble layer, a water permeable layer and a photographic emulsion layer, the photographic layer being-11b permanently carried by the permeable layer and the permeable layer comprising a cellulose aliphatic acid mixed ester of low acyl value containing acetyl groups in excess over any other acyl radicals.
- a stripping photographic film comprising,
- a stripping photographic film comprising,
- a temporary support in order, a temporary support, a soluble layer, a
- the photographic layer being permanently carried by the permeable layer and the permeable layer comprising a cellulose acetate propionate having an acyl value below 36% and containing more acetyl than propionyl groups.
- Astripping photographic film comprising, in order, a temporary support, a soluble layer, a water permeable layer and a photographic emulsion layer, the photographic layer being permanently carried by the permeable layer and the permeable layer comprising a cellulose acetate p'ropionate containing less than 30% acetyl groups and less than 5% propionyl groups.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Laminated Bodies (AREA)
- Moulding By Coating Moulds (AREA)
Description
Sept- 11, 1 3 c. R; FoRb cE ET-AL 1,973,476
PHOTOGRAPHIC STRIPPING FILM Filed Dec. 15, 1933 5kbler permeable layer of cellulose 4'Sensifive layer aliphafic acid ester of low acyl value K (Hydrolyzed cellulose aceldle propionale) -supporflPaper) ZV-Sfrhaping layer(8oluble gelaflne I Y J ordexlrine amniotic ClzmlesRFordycemMaz'lblm dam-M1 Patented Sept. 11; 1934 PHOTOGRAPHIC STRIPPING FILM Charles R. Fordyce and Martti Salo, Rochester,
N. Y., assignors to Eastman Kodak Company, Rochester, N. Y., a corporation of New York Application December 15, 1933, Serial No. 702,560
' 6 Claims. (01. 95-9) This invention relates to photographic stripping film, that is to say, to a photographic film in which the sensitive layer is carried on a temporary support from which it may be stripped during or after usef In accordance with the present invention the sensitive layer is carried on a water permeable layer or support to which it is permanently attached and which is in turn carried on a support 10 from which it is stripped and the invention consists in the use, in a stripping film, of a particular material as the permanent support.
Reference will now be made to the accompanying drawing in which the single figure shows on'an exaggerated scale a section of a film embodying our invention.
It 'is to be understood that while we have shown and described in some detail a particular embodiment of the temporary support and of other parts, this has been for the'purpose of making a complete disclosure of a preferred and operative embodiment and that we do not limit ourselves to the structures shown, numerous modifications and equivalents being possible and contemplated as within the scope of the invention.
In the drawing the reference character 1 designates the temporary support which may be of paper and which may or'may not be water permeable. This carries an adhesive layer 2, which may be of readily soluble gelatine or compositions comprising chiefly water soluble dextrine, and over this a layer 3 which is water permeable but not water soluble and, finally, a photographic emulsion 4, which is applied by usual photographic coating methods. The particular stripping layer is not of importance.
During the process of development, which may require only two or three minutes, the solution penetrates layers 3 and 4, and may also penetrate the layer 1, and softens or dissolves the layer 2 so that the layer 3 with the emulsion 4 adherent to it may be easily stripped from the support 1, and may be dried or may be placed on a glass plate or other surface for further use.
We have found that as a material for the layer 3, cellulose aliphatic esters of low acyl content are eminently suitable. While they are readily penetrated by water, they are not distorted or disintegrated by the action of the water or other ordinary photographic solution and after drying constitute firm, smooth photographic records. Cellulose acetate of an acetyl value less than 36% may be used satisfactorily. The range between 33% and 36% is most practical from certain standpoints, because of difliculties in coating when the content is less than 33%. However, the permeability increases as the acetyl content grows less so that the film has increased advantages in the lower range.
' Another useful material is hydrolyzed cellulose acetate propionate, hydrolyzed to as low as 26% acetyl and from 4 to 5% propionyl. In general, We may use cellulose acetate of low acetyl value or any cellulosic mixed ester of low acyl value and particularly one containing acetyl groups in excess over the other acyl radicals.
While the methods of making the film do not constitute any part of the present invention, the layers just described may be formed by coating from solutions in which the solvents may be mixtures of acetone and methyl alcohol, ethylene chloride and methyl alcohol, or acetone and water; or ethylene glycol monomethyl ether, or mixtures of ethylene glycol monomethyl ether with ethylene dichloride and methyl alcohol. If the cellulose acetate composition is to be coated directly upon the water soluble layer, it will be necessary to use solvents which will not dissolve the latter. This may be coated directly upon the 30 paper support 1, previously coated with the water-soluble coating 2, or it may be formed as a separate film and laminated on the paper support.
It is to be understood that the disclosure herein as is by way of example and that we consider as included in our invention any modifications and equivalents within the scope of the appended claims. J
Having thus described our invention, what we claim as new and desire to secure by Letters Patent is:
1. A stripping photographic film comprising, in order, a temporary support, a stripping layer,
a water permeable layer and a photographic emulsion layer, the photographic layer being permanently carried by the permeable layer and. the permeable layer comprising a cellulose aliphatic acid ester having a low acyl content.
2. A stripping photographic film comprising, in order, a temporary support, a soluble layer, a water permeable layer and a photographic emulsion layer, the photographic layer being permanently carried by the permeable layer and the permeable layer comprising a cellulose acetate having an acyl content less than 36%.
3. A stripping photographic film comprising, in order, a temporary support,a water soluble layer, a water permeable layer and a photographic emulsion layer, the photographic layer being-11b permanently carried by the permeable layer and the permeable layer comprising a cellulose aliphatic acid mixed ester of low acyl value containing acetyl groups in excess over any other acyl radicals.
- v 4. A stripping photographic film comprising,
5. A stripping photographic film comprising,
in order, a temporary support, a soluble layer, a
emma water permeable layer and a photographic emulsion layer, the photographic layer being permanently carried by the permeable layer and the permeable layer comprising a cellulose acetate propionate having an acyl value below 36% and containing more acetyl than propionyl groups.
6. Astripping photographic film comprising, in order, a temporary support, a soluble layer, a water permeable layer and a photographic emulsion layer, the photographic layer being permanently carried by the permeable layer and the permeable layer comprising a cellulose acetate p'ropionate containing less than 30% acetyl groups and less than 5% propionyl groups.
CHARLES R. FORDYCE.
MARTTI SALO.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US702560A US1973476A (en) | 1933-12-15 | 1933-12-15 | Photographic stripping film |
| DEK136233D DE653716C (en) | 1933-12-15 | 1934-12-13 | Photographic release film with an auxiliary carrier and a permanent carrier for the photographic layer |
| FR782728D FR782728A (en) | 1933-12-15 | 1934-12-14 | Improvements to peelable photographic films |
| GB36049/34A GB448802A (en) | 1933-12-15 | 1934-12-15 | Improvements in photographic stripping films |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US702560A US1973476A (en) | 1933-12-15 | 1933-12-15 | Photographic stripping film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1973476A true US1973476A (en) | 1934-09-11 |
Family
ID=24821721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US702560A Expired - Lifetime US1973476A (en) | 1933-12-15 | 1933-12-15 | Photographic stripping film |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1973476A (en) |
| DE (1) | DE653716C (en) |
| FR (1) | FR782728A (en) |
| GB (1) | GB448802A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3245792A (en) * | 1959-10-03 | 1966-04-12 | Azoplate Corp | Light sensitive polycarbonamide coatings for screen printing |
| US5011754A (en) * | 1989-04-26 | 1991-04-30 | Inax Corporation | Pigment-transfer sheets and method for decorating heat-resistant articles |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE564233A (en) * | 1957-01-28 |
-
1933
- 1933-12-15 US US702560A patent/US1973476A/en not_active Expired - Lifetime
-
1934
- 1934-12-13 DE DEK136233D patent/DE653716C/en not_active Expired
- 1934-12-14 FR FR782728D patent/FR782728A/en not_active Expired
- 1934-12-15 GB GB36049/34A patent/GB448802A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3245792A (en) * | 1959-10-03 | 1966-04-12 | Azoplate Corp | Light sensitive polycarbonamide coatings for screen printing |
| US5011754A (en) * | 1989-04-26 | 1991-04-30 | Inax Corporation | Pigment-transfer sheets and method for decorating heat-resistant articles |
Also Published As
| Publication number | Publication date |
|---|---|
| FR782728A (en) | 1935-06-11 |
| DE653716C (en) | 1937-12-01 |
| GB448802A (en) | 1936-06-15 |
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