US4744860A
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Process for making a non-polar polymeric material dyeable with an acid dye
Assignee: Union Carbide Chemicals and Plastics Technology LLC
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Filing: 1987-04-14
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Granted: 1988-05-17
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Expires: 2007-04-14
Abstract
Abstract Process for treating at least one surface of a non-polar polymeric material to improve the receptivity of that surface to coloration with an acid dye, which comprises treating said surface of the material with a low temperature microwave plasma from a chemical compound which is capable of creating receptor sites for acid dye on said surface.
Inventors
- 👤 Leopold Cop
- 👤 Jan Jordaan
- 👤 Henry P. Schreiber
- 👤 Michael R. Wertheimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:52
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/79; D06P3/791; D06M; D06M10/00; D06M10/02; D06M10/025; D06P5/00; D06P5/20; D06P5/2005; D06P5/2011; D06P5/22; D06M2101/00; D06M2101/16; D06M2101/18; Y; Y10; Y10S; Y10S8/00; Y10S8/12; Y10S8/92; Y10S8/928; Y10S8/93
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
57 words
A process for treating at least one surface of a non-polar polymeric material to improve the receptivity of that surface to coloration with an acid dye, which comprises treating said surface of the material with a low temperature microwave plasma from a chemical compound which is capable of creating receptor sites for acid dye on said surface.
Claim 2
Dependent Claim
57 words
A process for treating at least one surface of a non-polar polymeric material to improve the receptivity of that surface to coloration with an acid dye, which comprises treating said surface of the material with a low temperature microwave plasma from a chemical compound which is capable of creating receptor sites for acid dye on said surface.
Claim 3
Dependent Claim
15 words
The process of claim 1, wherein said process involves treating a polyolefinic non-polar polymeric material.
Claim 4
Dependent Claim
13 words
The process of claim 2, wherein said non-polar polymeric material is polypropylene material.
Claim 5
Dependent Claim
27 words
The process of claim 1, wherein the non-polar polymeric material consists of a member of the group comprising: woven fibers, non-woven fibers, woven fabric and non-woven fabric.
Claim 6
Dependent Claim
36 words
The process of claim 1, wherein said chemical compound is selected from the group consisting of hexamethylene diamine, allyamine, formamide, butylamine, acrylamine, ammonia, hydrazine, 1,3-diamino propane, pyrrolidine, heptamine, acrylic acid, toluidine, acetonitrile, vinyl pyridine and acrylamide.
Claim 7
Dependent Claim
15 words
The process of claim 1, wherein the surface of the non-polar polymeric material is pre-etched.
Claim 8
Dependent Claim
25 words
The process of claim 1, further comprising using a power level of between about 50 and about 600 watts for the low temperature microwave plasma.
Claim 9
Dependent Claim
34 words
The process of claim 1, further comprising the step of treating said non-polar polymeric material with an air plasma after treating the non-polar material with said low temperature microwave plasma from said chemical compound.
Claim 10
Dependent Claim
26 words
The process of claim 8 wherein said air plasma is heated to a temperature in the range of between about 75° C. and about 125° C.
Claim 11
Dependent Claim
21 words
The process of claim 1, wherein said low temperature of the microwave plasma is between about 30° C. and 100° C.
Claim 12
Dependent Claim
31 words
The process of claim 1, further comprising the step of treating said non-polar polymeric material by boiling it after dying in a detergent solution at a temperature of about 100° C.
Claim 13
Dependent Claim
135 words
A process for treating at least one surface of a non-polar polymeric material to improve the receptivity of that surface to an acid dye comprising: pre-etching the surface of a non-polar polymeric material; exposing said pre-etched material to a low temperature microwave plasma from a chemical monomer selected from the group consisting of hexamethylene diamine, allyamine, formamide, butylamine, acrylamine, ammonia, hydrazine, 1,3-diaminopropane, pyrrolidine, heptamine, acrylic acid, toluidine, acetonitrile, vinyl pyridine and acrylamide at between 0.1 torr pressure and 0.4 torr pressure, using about 50 to about 600 watts for about 10 to about 300 seconds; immersing the treated material in at least one acid dye bath with said bath heated to a temperature in the range of about 48° C. to about 52° C. for a period of time ranging between 10 and 800 seconds.
Claim 14
Dependent Claim
135 words
A process for treating at least one surface of a non-polar polymeric material to improve the receptivity of that surface to an acid dye comprising: pre-etching the surface of a non-polar polymeric material; exposing said pre-etched material to a low temperature microwave plasma from a chemical monomer selected from the group consisting of hexamethylene diamine, allyamine, formamide, butylamine, acrylamine, ammonia, hydrazine, 1,3-diaminopropane, pyrrolidine, heptamine, acrylic acid, toluidine, acetonitrile, vinyl pyridine and acrylamide at between 0.1 torr pressure and 0.4 torr pressure, using about 50 to about 600 watts for about 10 to about 300 seconds; immersing the treated material in at least one acid dye bath with said bath heated to a temperature in the range of about 48° C. to about 52° C. for a period of time ranging between 10 and 800 seconds.
Claim 15
Dependent Claim
13 words
The process of claim 12, wherein said non-polar polymeric material is a polyolefin.
Claim 16
Dependent Claim
10 words
The process of claim 13, wherein said polyolefin is polypropylene.
Claim 17
Dependent Claim
27 words
The process of claim 12, wherein said non-polar polymeric material is a member of the group consisting of non-woven fibers, woven fibers, non-woven fabrics and woven fabrics.
Claim 18
Dependent Claim
18 words
The process of claim 12, wherein said acid dye bath consists of acetic acid and a blue dye.
Claim 19
Dependent Claim
11 words
The process of claim 16, wherein said blue dye is nylomine.
Claim 20
Dependent Claim
54 words
The process of claim 12, further comprising the step of washing the material that has been dyed with at least one dilute aqueous solution of urea and then further rinsing the dyed material in an aqueous solution comprising a detergent and heated to a temperature between about 30 ° C. and about 90° C.
Claim 21
Dependent Claim
20 words
The process of claim 18, wherein said detergent solution is heated to a temperature between 70° C. and 90° C.
Claim 22
Dependent Claim
37 words
The process of claim 12, further comprising the step of treating the dyed material with an air plasma which has been heated to a temperature in the range of between about 75° C. and about 125° C.
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) | 1991-05-17 | 1991-11-16 | 1992-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-17 | 1995-11-16 | 1996-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-17 | 1999-11-16 | 2000-05-17 | $7700.00 | Window Closed / Lapsed |