Patent EP0685814A2 successfully refreshed from Google Patents.
US5037447A
Expired / Lapsed
US
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Method for producing laundry-resistant recording medium
Assignee: New Oji Paper Co Ltd
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Filing: 1989-01-24
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Granted: 1991-08-06
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Expires: 2009-01-24
Abstract
Abstract Disclosed is a method for producing a laundry-resistant recording medium comprising a receiving substrate and thermally transferred record images formed on the receiving substrate, the method comprising the steps of forming record images on a receiving substrate of thermal transfer using a thermal transfer recording medium which comprises a layer of a heat-fusible ink comprising a hydroxyl group-containing substance having a softening point of about 50° to about 300° C.; and treating the record images with a polyisocyanate.
Inventors
- 👤 Yoshiyuki Nishimoto
- 👤 Takayasu Hongo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:46
CPC Classifications
D; D06; D06Q; D06Q1/00; D06Q1/12; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/919
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
152 words
A method for producing a laundry-resistant tag or label comprising a substrate and a thermally transferred image formed on the substrate, the method comprising the steps of forming an image on said substrate by thermal transfer using a thermal transfer medium which comprises a layer of heat-fusible ink comprising a cross-linkable, hydroxyl group containing substance having a softening point of about 50° to about 300° C., said substance being selected from the group consisting of hydroxyl group-containing natural waxes, hydroxyl group-containing synthetic waxes, partially saponified vinyl acetate polymer, partially saponified ethylene-vinyl acetate copolymer, polycaprolactone polyol, and polycarbonate polyol, said ink further comprising at least one colorant selected from the group consisting of graphite, carbon black, organic pigment and oil-soluble dye; and subsequently contacting said image with a polyisocyanate capable of entering into a cross-linking reaction with the hydroxyl groups of said cross-linkable hydroxyl group-containing substance to produce a laundry-resistant tag or label.
Claim 2
Independent Claim
152 words
A method for producing a laundry-resistant tag or label comprising a substrate and a thermally transferred image formed on the substrate, the method comprising the steps of forming an image on said substrate by thermal transfer using a thermal transfer medium which comprises a layer of heat-fusible ink comprising a cross-linkable, hydroxyl group containing substance having a softening point of about 50° to about 300° C., said substance being selected from the group consisting of hydroxyl group-containing natural waxes, hydroxyl group-containing synthetic waxes, partially saponified vinyl acetate polymer, partially saponified ethylene-vinyl acetate copolymer, polycaprolactone polyol, and polycarbonate polyol, said ink further comprising at least one colorant selected from the group consisting of graphite, carbon black, organic pigment and oil-soluble dye; and subsequently contacting said image with a polyisocyanate capable of entering into a cross-linking reaction with the hydroxyl groups of said cross-linkable hydroxyl group-containing substance to produce a laundry-resistant tag or label.
Claim 3
Dependent Claim
24 words
A method according to claim 1 wherein the thermal transfer recording medium comprises a support and a layer of heat-fusible ink on the support.
Claim 4
Dependent Claim
15 words
A method according to claim 1 wherein the heat-fusible ink further comprises a heat-fusible binder.
Claim 5
Dependent Claim
22 words
A method according to claim 3 wherein the hydroxyl group-containing substance has a softening point of about 50° to about 200° C.
Claim 6
Dependent Claim
43 words
A method according to claim 3 wherein the heat-fusible ink further contains a hydroxyl group-free heat-meltable polyethylene wax or paraffin wax for controlling the melt viscosity of the ink, said heat-meltable wax having a softening point of about 50° to about 300° C.
Claim 7
Dependent Claim
57 words
A method according to claim 3 wherein the hydroxy group-containing substance comprises at least one member selected from the group consisting of hydroxyl group-containing natural waxes, hydroxyl group-containing synthetic waxes, partially saponified vinyl acetate polymer, partially saponified ethylene-vinyl acetate copolymer, polycaprolactone polyol, and polycarbonate polyol, each having a softening point of about 50° to about 300° C.
Claim 8
Dependent Claim
45 words
A method according to claim 1 wherein the hydroxyl group-containing substance is selected from the group consisting of carnauba wax, haze wax, bees wax, spermaceti, montan wax, candelilla wax, polyoxyethylene, and opal wax, each having a softening point of about 50° to about 300° C.
Claim 9
Dependent Claim
22 words
A method according to claim 7 wherein the hydroxyl group-consisting substance has a softening point of about 50° to about 200° C.
Claim 10
Dependent Claim
28 words
A method according to claim 3 wherein the colorant is at least one member selected from the group consisting of graphite, carbon black, organic pigment and oil-soluble dye.
Claim 11
Dependent Claim
44 words
A method according to claim 3 wherein the heat-fusible binder is at least one member selected from the group consisting of polyvinyl acetate, styrene resins, vinyl toluene resins, acrylate resins, ethylene-vinyl acetate copolymers, ethyelene-acrylate copolymers, vinyl chloride-vinyl acetate copolymers, rosin resins, and terpene resins.
Claim 12
Dependent Claim
46 words
A emthod according to claim 3 wherein the heat-fusible ink comprises about 5 to about 40 parts by weight of said colorant and about 10 to about 40 parts by weight of said heat-fusible binder, each per 100 parts by weight of the hydroxyl group-containing substance.
Claim 13
Dependent Claim
11 words
A method according to claim 1 wherein said substrate comprises paper.
Claim 14
Dependent Claim
55 words
A method according to claim 1 wherein said image is treated by passing the substrate having the image thereon through a polyisocyanate dissolved in a solvent or in a liquid state or by applying or spraying the polyisocyanate dissolved in a solvent or in a liquid state over the record image formed on the substrate.
Claim 15
Dependent Claim
59 words
A method accoding to claim 1 wherein said substrate comprises cellulose-containing paper and wherein the polyisocyanate reacts to form crosslinks between the hydroxyl groups of said hydroxyl group-containing substance in the ink and with the cellulose of the paper used as the receiving substrate, rendering the record images insoluble in an organic solvent or aqueous detergent used for laundry.
Claim 16
Dependent Claim
14 words
A method according to claim 1 wherein said polyisocyanate is in the liquid state.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-08-05 | 1995-02-04 | 1995-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-05 | 1999-02-04 | 1999-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-05 | 2003-02-04 | 2003-08-06 | $7700.00 | Window Closed / Lapsed |