US4245992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Discharge printing process for cellulosic fabrics using a quaternary amine polymer
Assignee: Toray Industries Inc
•
Filing: 1979-11-29
•
Granted: 1981-01-20
•
Expires: 1999-11-29
Abstract
Abstract A fabric of cellulosic fibers, particularly natural cellulosic fibers, of improved dyeability having a polymer of a monomer containing a quarternary amine group dispersed in the fibers with no phase separation is discharge printed. The improved cellulosic fibers can be prepared by impregnating a monomer containing a quarternary amine group into cellulosic fibers and polymerizing the monomer in the fibers. This treatment of cellulosic fibers with the polymer of a quarternary amine monomer can be advantageously utilized in the discharge printing of a fabric from a blend of hydrophobic synthetic/cellulosic fibers.
Inventors
- 👤 Yasuo Yamashita
- 👤 Masami Ikeyama
- 👤 Takao Nishikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:51
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/82; D06P3/8204; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06P3/58; D06P3/60; D06P5/00; D06P5/15; D06P5/155
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
39 words
A process for discharge printing a fabric of natural cellulosic fibers, comprising subjecting the fabric of natural cellulosic fibers having a polymer of a monomer containing a quarternary amine group dispersed therein with no phase separation to discharge printing.
Claim 2
Dependent Claim
39 words
A process for discharge printing a fabric of natural cellulosic fibers, comprising subjecting the fabric of natural cellulosic fibers having a polymer of a monomer containing a quarternary amine group dispersed therein with no phase separation to discharge printing.
Claim 3
Dependent Claim
29 words
A process according to claim 1, wherein the quarternary amine groups are contained in an amount equal to 10 to 800 milliequivalents per 1 Kg of the cellulosic fibers.
Claim 4
Dependent Claim
21 words
A process according to claim 1, wherein the polymer of the monomer containing a quarternary amine group is an addition polymer.
Claim 5
Dependent Claim
37 words
A process for discharge printing a fabric of cellulosic fibers, which comprises, in advance of the discharge printing, impregnating a monomer containing a quarternary amine group into a cellulosic fiber and polymerizing the monomer in the fiber.
Claim 6
Dependent Claim
37 words
A process for discharge printing a fabric of cellulosic fibers, which comprises, in advance of the discharge printing, impregnating a monomer containing a quarternary amine group into a cellulosic fiber and polymerizing the monomer in the fiber.
Claim 7
Dependent Claim
17 words
A process according to claim 4, wherein the monomer containing a quarternary amine group is water soluble.
Claim 8
Dependent Claim
19 words
A process according to claim 4, wherein the monomer containing a quarternary amine group is an addition polymerizing monomer.
Claim 9
Dependent Claim
27 words
A process according to claim 4, wherein the polymerization of the monomer containing a quarternary amine group is carried out by heating the fiber in saturated steam.
Claim 10
Dependent Claim
50 words
A process for discharge printing a fabric of a blend of synthetic fibers dyeable with an anionic or disperse dye and cellulosic fibers, which comprises impregnating a monomer containing a quarternary amine group into the fabric, polymerizing the monomer in the fabric and, then, subjecting the fabric to discharge printing.
Claim 11
Dependent Claim
50 words
A process for discharge printing a fabric of a blend of synthetic fibers dyeable with an anionic or disperse dye and cellulosic fibers, which comprises impregnating a monomer containing a quarternary amine group into the fabric, polymerizing the monomer in the fabric and, then, subjecting the fabric to discharge printing.
Claim 12
Dependent Claim
20 words
A process according to claim 8, wherein the synthetic fibers dyeable with an anionic or disperse dye are polyester fibers.
References Cited (Backward Citations)
GB1055899A
Cited
US3619356A
Cited
US3619357A
Cited
US3807946A
Cited
US3788804A
Cited
BE855699A
Cited
US4113674A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-20 | 1984-07-21 | 1985-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-20 | 1988-07-21 | 1989-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-20 | 1992-07-21 | 1993-01-20 | $7700.00 | Window Closed / Lapsed |