US4095942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing of hydrophobic textiles without afterwash and product thereof
Assignee: BASF Corp
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Filing: 1976-03-08
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Granted: 1978-06-20
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Expires: 1996-03-08
Abstract
Abstract A process for printing synthetic thermoplastic fibers, particularly polyester textiles, by applying to the fibers an aqueous dispersion of a non-ionic organic colorant, particularly a disperse dyestuff, and a thickener, subsequently drying the printed fibers, and finally heating the fibers to fix the colorant, wherein the aqueous dispersion contains less than 1%, preferably 0.2 to 0.5%, of a thickener of the formula ##STR1## WHERE R is hydrogen or lower alkyl, R 1 and R 2 are hydrogen, sodium, potassium, ammonium, mono-lower alkyl ammonium, di-lower alkyl ammonium, tri-lower alkyl ammonium, or tetra-lower alkyl ammonium, M is 0 or 1, N is 2 - m, and Y is 5000 to 50,000. Textiles printed by this process do not require any soaping or afterwash to remove the thickener and any unfixed dyestuff in order to have full shade printings with excellent fastness properties.
Inventors
- 👤 Kurt A. Dellian
- 👤 Fernand Schlaeppi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:15
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/20; D06P5/2066; D06P5/2077; D06P1/00; D06P1/44; D06P1/52; D06P1/5207; D06P1/525
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
127 words
In a process for printing synthetic thermoplastic textiles without washing, comprising the steps of printing on the textile an aqueous dispersion of a non-ionic organic colorant, a thickener, and an effective wetting amount of a non-ionic or anionic surfactant, subsequently drying the textile, and finally heating the textile to fix the colorant, the improvement which comprises using as the thickener, about 0.05 to about 0.5% by weight of a compund of the formula ##STR8## wherein R is hydrogen or lower alkyl, R 1 and R 2 are hydrogen, sodium, potassium, ammonium, mono-lower alkyl ammonium, di-lower alkyl ammonium, tri-lower alkyl ammonium, or tetra-lower alkyl ammonium, m is 0 or 1, n is 2 - m, and y is 5000 to 50,000, in the substantial absence of other electrolytes.
Claim 2
Dependent Claim
127 words
In a process for printing synthetic thermoplastic textiles without washing, comprising the steps of printing on the textile an aqueous dispersion of a non-ionic organic colorant, a thickener, and an effective wetting amount of a non-ionic or anionic surfactant, subsequently drying the textile, and finally heating the textile to fix the colorant, the improvement which comprises using as the thickener, about 0.05 to about 0.5% by weight of a compund of the formula ##STR8## wherein R is hydrogen or lower alkyl, R 1 and R 2 are hydrogen, sodium, potassium, ammonium, mono-lower alkyl ammonium, di-lower alkyl ammonium, tri-lower alkyl ammonium, or tetra-lower alkyl ammonium, m is 0 or 1, n is 2 - m, and y is 5000 to 50,000, in the substantial absence of other electrolytes.
Claim 3
Dependent Claim
18 words
The process of claim 1, wherein the organic colorant is fixed in the final step by steam heat.
Claim 4
Dependent Claim
24 words
The process of claim 1, wherein m is 1, R is hydrogen, R 1 and R 2 are sodium and y is about 20,000.
Claim 5
Dependent Claim
17 words
The process of claim 1, wherein the thickener is 0.1 to 0.2% by weight of aqueous dispersion.
Claim 6
Dependent Claim
17 words
The process of claim 1, wherein the synthetic thermoplastic textile comprises polyester, cellulose triacetate or polyamide fibers.
Claim 7
Dependent Claim
14 words
The process of claim 5, wherein the synthetic thermoplastic textile is a polyester textile.
Claim 8
Dependent Claim
16 words
The process of claim 6, wherein the textile is a blend of polyester and cotton fibers.
Claim 9
Dependent Claim
80 words
In a process of claim 1, the further improvement of heating the textile to fix the colorant in two steps, a first step, immediately after drying, of heating the printed textile with dry heat at a temperature of 160° to 230° C for 1 to 5 seconds and a second step of subsequently heating the printed textile at 120° to 230° C for a period of 5 seconds to 45 minutes, to fully fix the printed dye on the textile.
Claim 10
Dependent Claim
29 words
The process of claim 8, wherein the second heating step is carried out with dry heat at 160° to 230° C for a period of 5 to 90 seconds.
Claim 11
Dependent Claim
95 words
Unwashed printed synthetic thermoplastic textile material consisting essentially of synthetic thermoplastic textile material bearing heat-fixed non-ionic organic colorant together with an effective printing-paste-thickening amount of a compound of the formula ##STR9## wherein R is hydrogen or lower alkyl, R 1 and R 2 are hydrogen, sodium, potassium, ammonium, mono-lower alkyl ammonium, di-lower alkyl ammonium, tri-lower alkyl ammonium, or tetra-lower alkyl ammonium, m is 0 or 1, n is 2 - m, and y is 5000 to 50,000, and an effective wetting amount of a non-ionic or anionic surfactant in the substantial absence of other electrolyte.
Claim 12
Dependent Claim
95 words
Unwashed printed synthetic thermoplastic textile material consisting essentially of synthetic thermoplastic textile material bearing heat-fixed non-ionic organic colorant together with an effective printing-paste-thickening amount of a compound of the formula ##STR9## wherein R is hydrogen or lower alkyl, R 1 and R 2 are hydrogen, sodium, potassium, ammonium, mono-lower alkyl ammonium, di-lower alkyl ammonium, tri-lower alkyl ammonium, or tetra-lower alkyl ammonium, m is 0 or 1, n is 2 - m, and y is 5000 to 50,000, and an effective wetting amount of a non-ionic or anionic surfactant in the substantial absence of other electrolyte.
Claim 13
Dependent Claim
108 words
A printing paste, for use in producing printed synthetic thermoplastic textiles without the need for afterwashing, consisting essentially of an aqueous dispersion of a non-ionic organic colorant containing about 0.05 to 0.5% by weight of a compound of the formula ##STR10## wherein R is hydrogen or lower alkyl, R 1 and R 2 are hydrogen, sodium, potassium, ammonium, mono-lower alkyl ammonium, di-lower alkyl ammonium, tri-lower alkyl ammonium, or tetra-lower alkyl ammonium, m is 0 or 1, n is 2 - m, and y is 5000 to 50,000, and no more than about 1% by weight of a non-ionic or anionic surfactant, in the substantial absence of other electrolyte.
Claim 14
Dependent Claim
108 words
A printing paste, for use in producing printed synthetic thermoplastic textiles without the need for afterwashing, consisting essentially of an aqueous dispersion of a non-ionic organic colorant containing about 0.05 to 0.5% by weight of a compound of the formula ##STR10## wherein R is hydrogen or lower alkyl, R 1 and R 2 are hydrogen, sodium, potassium, ammonium, mono-lower alkyl ammonium, di-lower alkyl ammonium, tri-lower alkyl ammonium, or tetra-lower alkyl ammonium, m is 0 or 1, n is 2 - m, and y is 5000 to 50,000, and no more than about 1% by weight of a non-ionic or anionic surfactant, in the substantial absence of other electrolyte.
Claim 15
Dependent Claim
39 words
The printing paste of claim 11, wherein the thickener is 0.1 to 0.2% by weight of the aqueous dispersion and wherein R is hydrogen, R 1 and R 2 are sodium, m is 1 and y is about 20,000.
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) | 1981-06-19 | 1981-12-19 | 1982-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-19 | 1985-12-19 | 1986-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-19 | 1989-12-19 | 1990-06-20 | $7700.00 | Window Closed / Lapsed |