US5849398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparentized medium and process for making same
Assignee: Azon Corp
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Filing: 1997-06-24
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Granted: 1998-12-15
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Expires: 2017-06-24
Abstract
Abstract A transparentized paper is prepared by coating a transparentizing medium on to a paper substrate by a screen coating process. The method may be carried out on a continuous basis, and the medium may comprise an ultra-violet curable resin. Also disclosed is a universal vellum prepared according to the method of the invention, and having a first side which has a smooth texture and may be utilized for electrostatic, pen plotter and xerographic applications, and a second side having a rougher texture which may be utilized for drafting and ink-jet printing applications.
Inventors
- 👤 Linda M. Petrosky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:52
CPC Classifications
B; B41; B41M; B41M1/00; B41M1/26; B41M1/36; B41M5/00; B41M5/0041; B41M5/0047; D; D21; D21H; D21H27/00; D21H27/06; B41M5/50; B41M5/52; D21H19/00; D21H19/66; D21H21/00; D21H21/14; D21H21/26; Y; Y10; Y10S; Y10S428/00; Y10S428/918; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24934
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
181 words
A method for preparing a universal transparentized vellum having a first surface which is relatively smooth and a second surface which has a greater degree of texture than does said first surface, the method comprising the steps of: providing a generally planar substrate comprising a rag based paper having a cotton content in the range of 25-100% by weight; providing a transparentizing medium; and applying said transparentizing medium to the substrate by a screen coating process wherein a first surface of the substrate is contacted with a mesh screen, and a second surface of the substrate is free of the screen, and the transparentizing medium is forced through the screen and on to the substrate to deposit a controlled layer thereupon, so as to produce a coated substrate wherein the first surface, which was in contact with the screen when the transparentizing medium was forced therethrough is relatively smooth, and the second surface thereof, which was not in contact with said screen has its fibers disturbed so as to produce a texture which is rougher than that of the first surface.
Claim 2
Independent Claim
181 words
A method for preparing a universal transparentized vellum having a first surface which is relatively smooth and a second surface which has a greater degree of texture than does said first surface, the method comprising the steps of: providing a generally planar substrate comprising a rag based paper having a cotton content in the range of 25-100% by weight; providing a transparentizing medium; and applying said transparentizing medium to the substrate by a screen coating process wherein a first surface of the substrate is contacted with a mesh screen, and a second surface of the substrate is free of the screen, and the transparentizing medium is forced through the screen and on to the substrate to deposit a controlled layer thereupon, so as to produce a coated substrate wherein the first surface, which was in contact with the screen when the transparentizing medium was forced therethrough is relatively smooth, and the second surface thereof, which was not in contact with said screen has its fibers disturbed so as to produce a texture which is rougher than that of the first surface.
Claim 3
Dependent Claim
32 words
A method as in claim 1, wherein the transparentizing medium is a photo-curable resin, and wherein method includes the further step of illuminating the coated substrate, so as to cure the resin.
Claim 4
Dependent Claim
40 words
A method as in claim 1, wherein the step of applying the transparentizing medium on to the substrate includes the further step of preheating the medium to a temperature above ambient, prior to coating the medium on to the substrate.
Claim 5
Dependent Claim
27 words
A method as in claim 1, including the further step of heating the coated substrate, so as to enhance the penetration of said medium into said substrate.
Claim 6
Dependent Claim
15 words
A method as in claim 1, wherein said screen is configured as a cylindrical roller.
Claim 7
Dependent Claim
24 words
A method as in claim 1, wherein the step of applying the medium to said substrate comprises applying said medium in a continuous process.
Claim 8
Dependent Claim
14 words
A method as in claim 1, wherein said medium is an ultra-violet curable resin.
Claim 9
Dependent Claim
16 words
A method as in claim 1, wherein said screen has a mesh size of approximately 105-155.
Claim 10
Dependent Claim
12 words
A transparentized substrate made in accord with the process of claim 1.
Claim 11
Dependent Claim
15 words
A transparentized substrate as in claim 9, wherein said transparentizing medium is a photo-curable resin.
References Cited (Backward Citations)
US4100329A
Cited
US4237185A
Cited
US4990364A
Cited
US4911948A
Cited
US5055354A
Cited
US5207871A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-12-14 | 2002-06-15 | 2002-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-12-14 | 2006-06-15 | 2006-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-12-14 | 2010-06-15 | 2010-12-15 | $7700.00 | Window Closed / Lapsed |