US5882388A
Expired / Lapsed
US
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Water resistant ink jet recording media topcoats
Assignee: Brady Worldwide Inc
•
Filing: 1996-10-16
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Granted: 1999-03-16
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Expires: 2016-10-16
Abstract
Abstract Coating compositions for making ink jet recording media are disclosed which comprise a mixture of a binder composition comprising a non-cationic water-insoluble binder resin having a surface energy greater than 40 dyn/cm dissolved or dispersed in an alcoholic liquid medium or dispersed in an aqueous liquid medium, the liquid medium having a boiling point less than 150° C. and a viscosity up to 100 kpa:s at 25° C., and hydrophilic pigment particles having a number average particle size in the range from 1-25 microns and an oil absorption of at least 60 g oil/100 g particles, the composition having a pigment particle to binder resin weight ratio in the range from 0.5:1 to 3:1. A recording medium for ink jet printing is also described which may be made using this coating composition, along with a process for making it. A process for making a water-resistant color image on a support material using the described recording medium, along with the product obtainable by that process, is also disclosed. The color image has superior wear resistance and weatherability, making it well-suited for outdoor use.
Inventors
- 👤 Paul C. Adair
- 👤 Bruce M. Klemann
- 👤 Mary J. Janicek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:36
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; C; C09; C09D; C09D177/00; C09D177/06; C09D177/08; B41M5/502; B41M5/508; B41M5/5218; B41M5/5227; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249994; Y10T428/27
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
123 words
A process for making a recording medium for ink-jet printing comprising coating a synthetic polymer or film with a coating composition comprising a mixture of: (a) a binder composition comprising a non-cationic water-insoluble polyamide binder resin having a surface energy greater than 40 dyn/cm dissolved or dispersed in an alcoholic medium, the liquid medium having a boiling point less than 150° C. and a viscosity up to 100 kpa:s at 25° C. and (b) hydrophilic pigment particles comprising silica, the particles having a number average particle size in the range from 4-25 microns and an oil absorption of at least 150 g oil/100 g particles, the binder composition having a pigment particle to binder resin ratio in the range from 0.8:1 to 2:1.
Claim 2
Dependent Claim
123 words
A process for making a recording medium for ink-jet printing comprising coating a synthetic polymer or film with a coating composition comprising a mixture of: (a) a binder composition comprising a non-cationic water-insoluble polyamide binder resin having a surface energy greater than 40 dyn/cm dissolved or dispersed in an alcoholic medium, the liquid medium having a boiling point less than 150° C. and a viscosity up to 100 kpa:s at 25° C. and (b) hydrophilic pigment particles comprising silica, the particles having a number average particle size in the range from 4-25 microns and an oil absorption of at least 150 g oil/100 g particles, the binder composition having a pigment particle to binder resin ratio in the range from 0.8:1 to 2:1.
Claim 3
Dependent Claim
27 words
The process as defined in claim 1, wherein the synthetic polymer film or sheet has been treated on the surface to be coated with a polar polymer.
Claim 4
Dependent Claim
25 words
The process as defined in claim 1, wherein the recording medium produced by the process has from 8 to 24 g dried coating/m 2 .
Claim 5
Dependent Claim
22 words
The process as defined in claim 1, wherein the thickness of the coating is in the range from 10 to 50 microns.
Claim 6
Dependent Claim
13 words
A recording medium for ink-jet printing obtainable by the process of claim 1.
Claim 7
Dependent Claim
127 words
A recording medium for ink-jet printing comprising a synthetic polymer film or sheet having a coating in an amount in the range from 8 to 24 g/m 2 comprising: (a) a binder composition comprising a non-cationic water-insoluble polyamide binder resin having a surface energy greater than 40 dyn/cm dissolved or dispersed in an alcoholic medium, the liquid medium having a boiling point less than 150° C. and a viscosity up to 100 kpa:s at 25° C. and (b) hydrophilic pigment particles comprising silica, the particles having a number average particle size in the range from 4-25 microns and an oil absorption of at least 150 g oil/100 g particles, the binder composition having a pigment particle to binder resin ratio in the range from 0.8:1 to 2:1.
Claim 8
Dependent Claim
127 words
A recording medium for ink-jet printing comprising a synthetic polymer film or sheet having a coating in an amount in the range from 8 to 24 g/m 2 comprising: (a) a binder composition comprising a non-cationic water-insoluble polyamide binder resin having a surface energy greater than 40 dyn/cm dissolved or dispersed in an alcoholic medium, the liquid medium having a boiling point less than 150° C. and a viscosity up to 100 kpa:s at 25° C. and (b) hydrophilic pigment particles comprising silica, the particles having a number average particle size in the range from 4-25 microns and an oil absorption of at least 150 g oil/100 g particles, the binder composition having a pigment particle to binder resin ratio in the range from 0.8:1 to 2:1.
Claim 9
Dependent Claim
31 words
The recording medium according to claim 6, wherein the synthetic polymer flit or sheet has a primer coating enhancing adhesion of the binder resin to the synthetic polymer film or sheet.
Claim 10
Dependent Claim
66 words
The recording medium according to claim 6, wherein non-cationic water-insoluble polyamide resin is an alcohol-soluble polyamide consisting essentially of recurring carboxamide groups and at least two different species of recurring hydrocarbylene groups selected from the group consisting of aliphatic and alicyclic groups of 2 to 40 carbon atoms as integral parts of the main polymer chain, and having at least 3 different recurring polyamide repeat units.
Claim 11
Dependent Claim
29 words
The recording medium according to claim 6, wherein the polyamide is the product of a condensation reaction between at least one dimerized fatty acid and at least one diamine.
Claim 12
Dependent Claim
29 words
A process for making a water-resistant color image on a support material comprising applying a pigmented ink-jet ink to the coated side of the recording medium of claim 6.
Claim 13
Dependent Claim
14 words
A support material having a color image obtainable by the process of claim 10.
Claim 14
Dependent Claim
66 words
The process according to claims 1, wherein the polyamide binder resin is an alcohol-soluble water-insoluble polyamide consisting essentially of recurring carboxamide groups and at least two different species of recurring hydrocarbylene groups selected from the group consisting of aliphatic and alicyclic groups of 2 to 40 carbon atoms as integral parts of the main polymer chain, and having at least 3 different recurring polyamide repeat units.
Claim 15
Dependent Claim
28 words
The process according to claim 1, wherein the pigment particles are silica particles having a specific pore volume in the range from 1.2 to 3.0 cm 3 /g.
Claim 16
Dependent Claim
22 words
The process according to claim 1, wherein the pigment particles have a number average particle size in the range from 5-17 microns.
Claim 17
Dependent Claim
28 words
The process according to claim 1, wherein the binder composition further comprises an ultraviolet light absorber, a hindered amine light stabilizer or an antioxidant, or a combination thereof.
Claim 18
Dependent Claim
100 words
The process according to claim 1, wherein the polyamide binder resin is an alcohol-soluble water-insoluble polyamide consisting essentially of recurring carboxamide groups and at least two different species of recurring hydrocarbylene groups selected from the group consisting of aliphatic and alicyclic groups of 2 to 40 carbon atoms as integral parts of the main polymer chain, and having at least 3 different recurring polyamide repeat units, and the pigment particles are silica particles having a specific pore volume in the range from 1.2 to 3.0 cm 3 /g and a number average particle size in the range from 5-17 microns.
Claim 19
Dependent Claim
29 words
The recording medium according to claim 4, wherein the pigment particles are silica particles having a specific pore volume in the range from 1.2 to 3.0 cm 3 /g.
Claim 20
Dependent Claim
23 words
The recording medium according to claim 6, wherein the pigment particles have a number average particle size in the range from 5-17 microns.
Claim 21
Dependent Claim
29 words
The recording medium according to claim 6, wherein the binder composition further comprises an ultraviolet light absorber, a hindered amine light stabilizer or an antioxidant, or a combination thereof.
Claim 22
Dependent Claim
101 words
The recording medium according to claim 6, wherein the polyamide binder resin is an alcohol-soluble water-insoluble polyamide consisting essentially of recurring carboxamide groups and at least two different species of recurring hydrocarbylene groups selected from the group consisting of aliphatic and alicyclic groups of 2 to 40 carbon atoms as integral parts of the main polymer chain, and having at least 3 different recurring polyamide repeat units, and the pigment particles are silica particles having a specific pore volume in the range from 1.2 to 3.0 cm 3 /g and a number average particle size in the range from 5-17 microns.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-03-15 | 2002-09-14 | 2003-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-15 | 2006-09-14 | 2007-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-15 | 2010-09-14 | 2011-03-16 | $7700.00 | Window Closed / Lapsed |