US2763572A - Method of making waterproof paper - Google Patents
Method of making waterproof paper Download PDFInfo
- Publication number
- US2763572A US2763572A US419448A US41944854A US2763572A US 2763572 A US2763572 A US 2763572A US 419448 A US419448 A US 419448A US 41944854 A US41944854 A US 41944854A US 2763572 A US2763572 A US 2763572A
- Authority
- US
- United States
- Prior art keywords
- paper
- coating
- photographic
- baryta
- waterproof
- 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
- 238000004519 manufacturing process Methods 0.000 title description 2
- 238000000576 coating method Methods 0.000 claims description 22
- 239000011248 coating agent Substances 0.000 claims description 21
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 claims description 16
- 229910001864 baryta Inorganic materials 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 15
- 239000006185 dispersion Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 12
- 238000010030 laminating Methods 0.000 claims description 7
- 239000011347 resin Substances 0.000 description 14
- 229920005989 resin Polymers 0.000 description 14
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 7
- WFKDPJRCBCBQNT-UHFFFAOYSA-N n,2-dimethylprop-2-enamide Chemical compound CNC(=O)C(C)=C WFKDPJRCBCBQNT-UHFFFAOYSA-N 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 5
- 239000000839 emulsion Substances 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 239000004816 latex Substances 0.000 description 4
- 229920000126 latex Polymers 0.000 description 4
- 238000004078 waterproofing Methods 0.000 description 4
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000001022 rhodamine dye Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- -1 acryl Chemical group 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 1
- GPRLSGONYQIRFK-MNYXATJNSA-N triton Chemical compound [3H+] GPRLSGONYQIRFK-MNYXATJNSA-N 0.000 description 1
Images
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
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- Y10S430/136—Coating process making radiation sensitive element
Definitions
- ATTORNE'EAS 2,763,572 Patented Sept, 18, 1956 Henry C. Staehle, Rochester, N. Y., assignor to Eastman Kodak Company, Rochester, N. Y., a corporation of New Jersey Application March 29, 1954, Serial No. 419,448
- This invention concerns the treatment of paper to improve its water resistance, more particularly the treatment of photographic paper to increase its resistance to aqueous processing solutions.
- An object of this invent-ion is to provide a waterproof paper.
- a further object of this invention is to provide a method of waterproofing paper.
- An additional object of this invention is to provide a coating method using a resin latex coating for photographic paper.
- Another ob ject is to provide a water-resistant photographic paper compatible with a light-sensitive emulsion containing silver salts. Additional objects will be apparent from the specification considered in connection with the attached drawing.
- FIG. 1 is a diagrammatic view of a system employed for applying a Waterproof coating to the back of a photographic paper having a bary-ta coating on its face.
- the paper is wound on a supply roll and placed on supporting means 1.
- the paper web is led from the supply roll between two rollers 2 and 3.
- the paper continues against the guide rollers 4, 5, 6 and 7, around rollers 8, 9, 10 and 11 back be tween the two rollers 2 and 3 where the back of the paper contacts the baryta side of the paper.
- a resin dispersion is applied as a bead where the two surfaces pass between the two rollers 2 and 3.
- the resin coating remains on the back of the paper.
- the baryta side is coated with the resin coating, laminated to a polished surface for about 30 seconds and peeled therefrom.
- the resulting paper has a waterproof coating on both sides.
- my waterproof paper is obtained by coating photographic paper stock which has been baryta coated on the face with a resin latex comprising a polymeric dispersion madefrom N-methyl methacrylamide, n butyl acrylate, and acrylonitrile monomers. From about 10% to 40% of a polymer embodying these monomers is used. The composition of these monomeric constituents can be varied from 2% to 20% N-methyl met-hacrylamide, 40% to 60% n-buty1 acrylate, and 40% to 60% acrylonitrile.
- My preferred method of coating is desirable inasmuch as .a coating of this composition when air dried may contain considerable defects.
- I used a resin latex representing 40 percent polymer of the following monomeric compositions:
- Ethylene chloride is the preferred solvent but other solvents such as ethyl acetate and benzol may be used. If a solvent, such as trichloroethylene, is used with the resin coating, too elastic a, film. is formed and at the time of pulling the two sheets apart will pull away from the back side in a spotty fashion to produce an unsatisfactory coating. On the other hand, the use of a solvent such as chloroform tends to produce. av coating which is not sufficiently waterproofed, and which will'absorb Rhodamine dye when tested as above.
- a method for coating the back of photographic paper comprising laminating the back of the paper to a baryta coated paper surface by means of an aqueous dispersion of an interpolymeric composition comprising N- methyl methacrylamide, n-butyl a crylate and acrylonitrile, and separating of the two surfaces.
- a method for waterproofing photographic paper having a baryta coating on one side comprising laminating the back of the paper to the baryta coated paper surface with an aqueous dispersion of an interpolymeric composition comprising N-methyl methacrylamide, n-butyl acrylate and acrylonitrile, and separating after 30 seconds, applyingthe resin coating to the baryta side of the paper, laminating to a polished drum and separating after a per-iod of about 30 seconds.
- a continuous method for applying a Waterproof coating on a continuous web of photographic paper having one side baryta coated comprising passing the paper between two rollers, moving the paper in a circuitous route so that it is passed between the rollers a second time, the back of said paper passing between the rollers in contact with the baryta coated side, applying an aqueous dispersion of an interpolymeric composition comprising N- methyl methacrylamide, n-butyl acrylate and acryl'onitrile. at the point where the two sheets of paper meet, contacting the two sheets of paper in a laminated position for from about 20 to 40' seconds and separating the two sheets of paper.
- polymeric composition contains from 2 to 20% N-methyl me-thacrylamide, 40 to nbutyl acrylate and 40 to 60% acrylonitrile.
- polymeric composition contains from 2 to 20% N-methyl methacrylamide, 40 to 60% n-butyl acrylate and 40 to 60% acrylonitrile.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
- Laminated Bodies (AREA)
Description
Sept 18, 1956 H. C. STAEHLE METHOD OF MAKING WATERPROOF Filed March 29, 1954 PAPER BA RYTA SIDE RES IN C TG.
TOGLAZ/NG BARYTA M Henry CSiae/zle INVENTOR.
ATTORNE'EAS" 2,763,572 Patented Sept, 18, 1956 Henry C. Staehle, Rochester, N. Y., assignor to Eastman Kodak Company, Rochester, N. Y., a corporation of New Jersey Application March 29, 1954, Serial No. 419,448
8 Claims. (Cl. 117-64) This invention concerns the treatment of paper to improve its water resistance, more particularly the treatment of photographic paper to increase its resistance to aqueous processing solutions.
In the photographic art, various means have been used in the past to waterproof paper or to make it water resistant. However, some of these processes have been relatively expensive and are unable to compare favorably in cost to normally used photographic papers even though they result in substantial saving of time and equip ment. Moreover, some of the waterproofing compositions may bleed or leach into the photographic emulsions causing fog or spots which are objectionable. Consequently, there has been a need for an inexpensive Waterproof paper which would cost approximately the same as commercially available photographic papers, and which would be compatible with photographic emulsions.
Processing photographic prints using paper normally available requires considerable Washing and drying inasmuch as the chemicals which are used in photographic processing tend to be absorbed in the photographic paper and must be removed by time consuming washing. Following this extensive washing, it is necessary to dry the prints to remove the water in order to present them in a finished condition. A waterproof paper would not absorb these chemicals from the processing baths and, therefore, would not require the long washing period or as elaborate Washing equipment as is now in use. Moreover, certain intricate photo-finishing machines could be redesigned to make them smaller and to process photographic prints in a shorter time. One attempt to solve the problem of providing a waterproof paper has been suggested which in volves coating the paper with wax which is compatible with photographic emulsions. However, when such a pa per is rolled tightly on a drum, the surfaces tend to ad here to each other resulting in blocking of the sheets. Also, when such paper is cut on a paper cutter involving more than a single sheet the pressure required for the cutting knife may also result in blocking. On the other hand, brittleness should be avoided in photographic paper so that the paper may be rolled for handling. It should also be able to withstand temperature differences so that it may be used in northern climates or in the tropics. have found a method of waterproofing paper which is compatible with photographic emulsions, and which provides a paper which is able to withstand the rigors of handling under various conditions. Moreover, it appears that this process can be carried out at favorable costs.
An object of this invent-ion is to provide a waterproof paper. A further object of this invention is to provide a method of waterproofing paper. An additional object of this invention is to provide a coating method using a resin latex coating for photographic paper. Another ob ject is to provide a water-resistant photographic paper compatible with a light-sensitive emulsion containing silver salts. Additional objects will be apparent from the specification considered in connection with the attached drawing.
In the accompanying drawing, Fig. 1 is a diagrammatic view of a system employed for applying a Waterproof coating to the back of a photographic paper having a bary-ta coating on its face.
In the embodiment for carrying out the lamination process on a single web of paper, the paper is wound on a supply roll and placed on supporting means 1. The paper web is led from the supply roll between two rollers 2 and 3. The paper continues against the guide rollers 4, 5, 6 and 7, around rollers 8, 9, 10 and 11 back be tween the two rollers 2 and 3 where the back of the paper contacts the baryta side of the paper. A resin dispersion is applied as a bead where the two surfaces pass between the two rollers 2 and 3. As the paper leaves the roller 8 where the two sheets are separated, the resin coating remains on the back of the paper. The baryta side is coated with the resin coating, laminated to a polished surface for about 30 seconds and peeled therefrom. The resulting paper has a waterproof coating on both sides.
More specifically, my waterproof paper is obtained by coating photographic paper stock which has been baryta coated on the face with a resin latex comprising a polymeric dispersion madefrom N-methyl methacrylamide, n butyl acrylate, and acrylonitrile monomers. From about 10% to 40% of a polymer embodying these monomers is used. The composition of these monomeric constituents can be varied from 2% to 20% N-methyl met-hacrylamide, 40% to 60% n-buty1 acrylate, and 40% to 60% acrylonitrile.
I have found that in order to provide a waterproof paper it is necessary to laminate the back of a photo graphic paper to the baryta side of another sheet (or the same sheet when operating with continuous lengths as illustrated in the drawing). As the two surfaces of paper are rolled in contact with one another, a bead of the dispersion is applied which forms a film of latex between the two sheets. After an interval of about 20 to 40 seconds the two surfaces are separated leaving the resin film adhering tenaciously to the back surface of that sheet. In order to waterproof the baryta. side, that surface is glazed by laminating the paper with the same resin dispersion onto a polished chromium or other similar polished metal surface, allowed to remain in contact for 20 to 40 seconds and then peeled off. In this maner, both sides of the sheet are waterproofed.
My preferred method of coating is desirable inasmuch as .a coating of this composition when air dried may contain considerable defects.
In my preferred embodiment, I used a resin latex representing 40 percent polymer of the following monomeric compositions:
8 percent N-methyl methacrylamide 46 percent n-butyl acrylate 46 percent acrylonitrile The back of a photographic sheet having the face baryta coated was waterproofed using the above dispersion, by laminating against a baryta surfaced paper and peeling, after about 30 seconds. The baryta coated surface Was waterproofed by coating with the resin, laminating to a polished chromium drum, and peeling after about 30 seconds. Both sides of the paper then carried a water proof resin layer. However, water from the resin dispersions trapped in the structure of the paper was indicated by the limp quality of the freshly coated paper. The paper was hung in a vertical position under room conditions for two hours, at which time the paper appeared dry. A sample of the dried paper was tested by immersing a section for at least one minute in a strong solution of Rhodamine dye containing as a surface active agent, Triton N--100, which is an aryl alkyl poly-ether alcohol. The absence of pin holes was apparent since the dye layer was easily removed in running. water. This test indicates the presence of pin holes by penetrating through the holes into the paper wherever these defects are present. Moreoverthe quality of the waterproofness was attested to by the length of time required for the water trapped in the paper to diffuse through the surface coating during the drying step.
I have found that the nature of the solvent added to the resin dispersion is extremely important. Ethylene chloride is the preferred solvent but other solvents such as ethyl acetate and benzol may be used. If a solvent, such as trichloroethylene, is used with the resin coating, too elastic a, film. is formed and at the time of pulling the two sheets apart will pull away from the back side in a spotty fashion to produce an unsatisfactory coating. On the other hand, the use of a solvent such as chloroform tends to produce. av coating which is not sufficiently waterproofed, and which will'absorb Rhodamine dye when tested as above.
I claim:
1. A method for coating the back of photographic paper, comprising laminating the back of the paper to a baryta coated paper surface by means of an aqueous dispersion of an interpolymeric composition comprising N- methyl methacrylamide, n-butyl a crylate and acrylonitrile, and separating of the two surfaces.
2. A method for waterproofing photographic paper having a baryta coating on one side, comprising laminating the back of the paper to the baryta coated paper surface with an aqueous dispersion of an interpolymeric composition comprising N-methyl methacrylamide, n-butyl acrylate and acrylonitrile, and separating after 30 seconds, applyingthe resin coating to the baryta side of the paper, laminating to a polished drum and separating after a per-iod of about 30 seconds.
3. A continuous method for applying a Waterproof coating on a continuous web of photographic paper having one side baryta coated, comprising passing the paper between two rollers, moving the paper in a circuitous route so that it is passed between the rollers a second time, the back of said paper passing between the rollers in contact with the baryta coated side, applying an aqueous dispersion of an interpolymeric composition comprising N- methyl methacrylamide, n-butyl acrylate and acryl'onitrile. at the point where the two sheets of paper meet, contacting the two sheets of paper in a laminated position for from about 20 to 40' seconds and separating the two sheets of paper.
4. A process according to claim 3 in which the paper having a waterproof coating on the back is coated with the aqueous dispersion of an interpoly-meric composition, laminated to a polished metal drum for a period of from about 20 to 40 seconds and separated therefrom.
5. A. process according to claim 4 in which the polymeric composition contains from 2 to 20% N-methyl me-thacrylamide, 40 to nbutyl acrylate and 40 to 60% acrylonitrile.
6. A process according to claim 3 in which the polymeric composition contains from 2 to 20% N-methyl methacrylamide, 40 to 60% n-butyl acrylate and 40 to 60% acrylonitrile.
7. A process according to claim 2 in which a solvent selected from the class consisting of ethylene chloride, ethyl acetate, and benzol is added to the aqueous dispersion of the interpolymeric composition.
8. A process according to claim 4 in which a solvent selected from the class consisting of ethylene chloride, ethyl acetate and benzol is added to the aqueous dispersion.
Schwartz June 29, 1943 Muskat Aug. 8, 1950
Claims (1)
1. A METHOD FOR COATING THE BACK OF PHOTOGRAPHIC PAPER, COMPRISING LAMINATING THE BACK OF THE PAPER TO A BARYTA COATED PAPER SURFACE BY MEANS OF AN AQUEOUS DISPERSION OF AN INTERPOLYMERIC COMPOSITION COMPRISING N-
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US419448A US2763572A (en) | 1954-03-29 | 1954-03-29 | Method of making waterproof paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US419448A US2763572A (en) | 1954-03-29 | 1954-03-29 | Method of making waterproof paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2763572A true US2763572A (en) | 1956-09-18 |
Family
ID=23662311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US419448A Expired - Lifetime US2763572A (en) | 1954-03-29 | 1954-03-29 | Method of making waterproof paper |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2763572A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3132040A (en) * | 1960-04-22 | 1964-05-05 | Cellophane Invest Company Ltd | Film coating apparatus and method |
| DE1182047B (en) * | 1959-02-03 | 1964-11-19 | Basf Ag | Use of water-soluble mixed polymers to refine paper |
| US3175925A (en) * | 1962-07-16 | 1965-03-30 | Burroughs Corp | Method of coating a porous web with ink |
| US3336276A (en) * | 1966-02-21 | 1967-08-15 | Standard Oil Co | Novel synthetic polymers |
| US4302528A (en) * | 1978-07-12 | 1981-11-24 | Sumitomo Chemical Company, Limited | Process for producing photo-curable composite materials useful for preparing stencils |
| US4871642A (en) * | 1986-08-04 | 1989-10-03 | Fuji Photo Film Co., Ltd. | Light-sensitive material comprising light-sensitive layer provided on a support comprising a water resistant coating layer |
| US6043009A (en) * | 1997-05-23 | 2000-03-28 | Eastman Kodak Company | Composite photographic material with laminated biaxially oriented polyolefin sheets |
| US20090274855A1 (en) * | 2008-03-31 | 2009-11-05 | International Paper Company | Recording Sheet With Enhanced Print Quality At Low Additive Levels |
| US8758565B2 (en) | 2006-01-17 | 2014-06-24 | International Paper Company | Paper substrates containing high surface sizing and low internal sizing and having high dimensional stability |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2322888A (en) * | 1940-11-16 | 1943-06-29 | Du Pont | Process for producing high wet strength paper |
| US2517698A (en) * | 1945-03-05 | 1950-08-08 | Marco Chemicals Inc | Method of polymerizing fiber reinforced resinous materials |
-
1954
- 1954-03-29 US US419448A patent/US2763572A/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2322888A (en) * | 1940-11-16 | 1943-06-29 | Du Pont | Process for producing high wet strength paper |
| US2517698A (en) * | 1945-03-05 | 1950-08-08 | Marco Chemicals Inc | Method of polymerizing fiber reinforced resinous materials |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1182047B (en) * | 1959-02-03 | 1964-11-19 | Basf Ag | Use of water-soluble mixed polymers to refine paper |
| US3132040A (en) * | 1960-04-22 | 1964-05-05 | Cellophane Invest Company Ltd | Film coating apparatus and method |
| US3175925A (en) * | 1962-07-16 | 1965-03-30 | Burroughs Corp | Method of coating a porous web with ink |
| US3336276A (en) * | 1966-02-21 | 1967-08-15 | Standard Oil Co | Novel synthetic polymers |
| US4302528A (en) * | 1978-07-12 | 1981-11-24 | Sumitomo Chemical Company, Limited | Process for producing photo-curable composite materials useful for preparing stencils |
| US4871642A (en) * | 1986-08-04 | 1989-10-03 | Fuji Photo Film Co., Ltd. | Light-sensitive material comprising light-sensitive layer provided on a support comprising a water resistant coating layer |
| US6043009A (en) * | 1997-05-23 | 2000-03-28 | Eastman Kodak Company | Composite photographic material with laminated biaxially oriented polyolefin sheets |
| US8758565B2 (en) | 2006-01-17 | 2014-06-24 | International Paper Company | Paper substrates containing high surface sizing and low internal sizing and having high dimensional stability |
| US9309626B2 (en) | 2006-01-17 | 2016-04-12 | International Paper Company | Paper substrates containing high surface sizing and low internal sizing and having high dimensional stability |
| US20090274855A1 (en) * | 2008-03-31 | 2009-11-05 | International Paper Company | Recording Sheet With Enhanced Print Quality At Low Additive Levels |
| US8652594B2 (en) | 2008-03-31 | 2014-02-18 | International Paper Company | Recording sheet with enhanced print quality at low additive levels |
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