EP0125113A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Hydrophobic substrate with coating receptive to inks
Assignee: Tektronix Inc
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Filing: 1984-05-03
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Granted: —
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Expires: 2004-05-03
Abstract
Abstract A recording material, comprising a hydrophobic substrate material with a polymeric coating, has excellent receptivity for inks that do not normally wet hydrophobic substrates. The substrate material is coated with a mixture of polyvinylpyrrolidone and a compatible matrix-forming polymer. The matrix-forming polymer is a material, such as gelatin or polyvinyl alcohol, that is swellable by water and insoluble at room temperature but soluble at elevated temperatures. A transparent base sheet, such as cellulose acetate or polyethylene terephthalate, can be coated with the mixture of polymers to provide a sheet material which can be used in ink jet printers and in pen-type graphics recorders, operating at normal speeds, to record large color-filled areas without puddling, running, orwetness and with high color density and excellent resolution.
Inventors
- 👤 Charles W. Jaeger
- 👤 Donald R. Titterington
- 👤 Le Phuoc Hue
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 11:04
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41M5/5254; B41M5/0011; B41M5/0041; B41M5/0047; B41M5/0064; B41M5/502; B41M5/508; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/24868; Y10T428/24893; Y10T428/24901; Y10T428/31504; Y10T428/31725; Y10T428/31768; Y10T428/31786; Y10T428/31797
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
22 words
A recording material receptive to inks which comprises a substrate material that is hydrophobic and that has a surface coated with polyvinylpyrrolidone.
Claim 2
Dependent Claim
22 words
A recording material receptive to inks which comprises a substrate material that is hydrophobic and that has a surface coated with polyvinylpyrrolidone.
Claim 3
Dependent Claim
33 words
A recording material receptive to inks which comprises a substrate material that is hydrophobic and that has a surface coated with a mixture of polyvinylpyrrolidone and a compatible matrix-forming polymer that is hydrophylic.
Claim 4
Dependent Claim
33 words
A recording material receptive to inks which comprises a substrate material that is hydrophobic and that has a surface coated with a mixture of polyvinylpyrrolidone and a compatible matrix-forming polymer that is hydrophylic.
Claim 5
Dependent Claim
22 words
The recording material of claim 2 in which the matrix-forming polymer is selected from the group consisting of gelatin and polyvinyl alcohol.
Claim 6
Dependent Claim
18 words
The recording material of claim 3 in which the matrix-forming polymer is an essentially fully hydrolyzed polyvinyl alcohol.
Claim 7
Dependent Claim
25 words
The recording material of claim 4 in which the molecular weight of the polyvinyl alcohol is sufficiently low that the mixture will be substantially transparent.
Claim 8
Dependent Claim
13 words
The recording material of claim 3 in which the matrix-forming polymer is gelatin.
Claim 9
Dependent Claim
23 words
The recording material of claim 2 in which the ratio of polyvinylpyrrolidone to matrix-forming polymer is in the range of 1:3 to 3:1..
Claim 10
Dependent Claim
18 words
The recording material of claim 2 in which the molecular weight of the polyvinylpyrrolidone is at least 90,000.
Claim 11
Dependent Claim
29 words
The recording material of claim 2 comprising a transparent base sheet uniformly coated on at least one side with a transparent mixture of the polyvinylpyrrolidone and the matrix-forming polymer.
Claim 12
Dependent Claim
16 words
The recording material of claim 9 in which the base sheet is coated on both sides.
Claim 13
Dependent Claim
23 words
A process for making a hydrophobic material receptive to inks, the process comprising coating a surface of a hydrophobic substrate material with polyvinylpyrrolidone.
Claim 14
Dependent Claim
23 words
A process for making a hydrophobic material receptive to inks, the process comprising coating a surface of a hydrophobic substrate material with polyvinylpyrrolidone.
Claim 15
Dependent Claim
35 words
A process for making a hydrophobic material receptive to inks, the process comprising coating a surface of a hydrophobic substrate material with a mixture of polyvinylpyrrolidone and a compatible matrix-forming polymer that is hydrophyl ic.
Claim 16
Dependent Claim
35 words
A process for making a hydrophobic material receptive to inks, the process comprising coating a surface of a hydrophobic substrate material with a mixture of polyvinylpyrrolidone and a compatible matrix-forming polymer that is hydrophyl ic.
Claim 17
Dependent Claim
21 words
The process of claim 12 in which the matrix-forming polymer is selected from the group consisting of gelatin and polyvinyl alcohol.
Claim 18
Dependent Claim
17 words
The process of claim 13 in which the matrix-forming polymer is an essentially fully hydrolyzed polyvinyl alcohol.
Claim 19
Dependent Claim
24 words
The process of claim 14 in which the molecular weight of the polyvinyl alcohol is sufficiently low that the mixture will be substantially transparent.
Claim 20
Dependent Claim
12 words
The process of claim 13 in which the matrix-forming polymer is gelatin.
Claim 21
Dependent Claim
22 words
The process of claim 12 in which the ratio of polyvinylpyrrolidone to matrix-forming polymer is in the range of 1:3 to 3:1.
Claim 22
Dependent Claim
17 words
The process of claim 12 in which the molecular weight of the polyvinylpyrrolidone is at least 90,000.
Claim 23
Dependent Claim
37 words
The process of claim 12 in which: the substrate material is a transparent base sheet; and at least one side of the base sheet is coated with a transparent mixture of the polyvinylpyrrolidone and the matrix-forming polymer.
Claim 24
Dependent Claim
13 words
The process of claim 19 comprising coating the base sheet on both sides.
References Cited (Backward Citations)
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