US3997291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the wet treatment of lengths of printed textile material in several treatment bowls
Assignee: Vepa AG
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Filing: 1973-11-19
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Granted: 1976-12-14
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Expires: 1993-11-19
Abstract
Abstract A process for the washing of printed textile materials includes the steps of wetting a printed material with a treatment liquor, allowing the wetted printed material to dwell in a steeping bowl containing a treatment liquor for several minutes in a folded state with the material moving slowly through the steeping bowl and removing substances loosened by the steeping treatment from the printed material in an intensive flow-through washing stage by passing the printed material over a perforated surface of a perforated drum means within a washing bowl.
Inventors
- 👤 Heinz Fleissner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:47
CPC Classifications
D; D06; D06B; D06B3/00; D06B3/10; D06B3/18; D06B17/00; D06B17/02; D06B21/00; D06B21/02; D06B3/16; D06B3/20; D06B3/201
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
170 words
A process for the washing of printed textile materials comprising woven or knitted fabrics of natural and/or synthetic fibers which comprises wetting a printed material with a treatment liquor; allowing the wetted printed material to dwell in a steeping bowl containing a treatment liquor for several minutes in a folded state, said steeping bowl comprising a J-box having a knee portion located in a bowl containing said treatment liquor up to a certain liquid level, an intake leg portion and a delivery leg portion, and said printed material being pushed slowly through the knee portion of said J-box in said folded state and out above the liquid level in the delivery leg portion whereby tension-free delivery of the printed material from the J-box is obtained, and removing substances, which have been loosened by the steeping treatment in said J-box, from the printed material in an intensive flow-through washing stage by conveying the printed material on a perforated surface of a perforated drum means within a perforated drum washing bowl means.
Claim 2
Dependent Claim
170 words
A process for the washing of printed textile materials comprising woven or knitted fabrics of natural and/or synthetic fibers which comprises wetting a printed material with a treatment liquor; allowing the wetted printed material to dwell in a steeping bowl containing a treatment liquor for several minutes in a folded state, said steeping bowl comprising a J-box having a knee portion located in a bowl containing said treatment liquor up to a certain liquid level, an intake leg portion and a delivery leg portion, and said printed material being pushed slowly through the knee portion of said J-box in said folded state and out above the liquid level in the delivery leg portion whereby tension-free delivery of the printed material from the J-box is obtained, and removing substances, which have been loosened by the steeping treatment in said J-box, from the printed material in an intensive flow-through washing stage by conveying the printed material on a perforated surface of a perforated drum means within a perforated drum washing bowl means.
Claim 3
Dependent Claim
38 words
A process according to claim 1, wherein the substances that have been loosened in the steeping bowl are removed from the material by a rinsing liquor which flows through the printed material being conveyed on said perforated surface.
Claim 4
Dependent Claim
35 words
A process according to 1, wherein the printed material dwells in a calm liquor in said folded state within said J-box, said J-box having a long intake leg portion and a short delivery leg portion.
Claim 5
Dependent Claim
35 words
A process according to 1, wherein the printed material dwells in a calm liquor in said folded state within said J-box, said J-box having a long intake leg portion and a short delivery leg portion.
Claim 6
Dependent Claim
22 words
A process according to claim 1, wherein the printed material is intensively penetrated by a washing liquor in several individual washing stages.
Claim 7
Dependent Claim
79 words
A process according to claim 1 for washing textile materials of polyester fibers or blends containing polyester fibers, which materials are chiefly printed with dispersion dyestuffs, wherein the printed polyester material is first wetted and squeezed and the squeezed-off liquor is drained, and the printed material thereupon dwells in said folded state within said steeping bowl in an appropriate liquor for reductive cleaning and is finally rinsed, acid-treated and rinsed again by a flow-through stage on said perforated surface.
Claim 8
Dependent Claim
59 words
A process according to claim 1 for washing printed materials which at least partly consist of acrylic or polyamide fibers, wherein the printed material is first wetted with a concentrated washing liquor in said steeping bowl and then dwells in this liquor in folded state before being squeezed and finally rinsed at different temperatures and in the flow-through stage.
Claim 9
Dependent Claim
101 words
A process according to claim 1 for washing materials of cotton or rayon staple fibers which are mainly printed with reactive dyestuffs, wherein the printed material is wetted with a concentrated washing liquor, then dwells in the treatment liquor in the folded state for several minutes, is then squeezed -- the squeezed-off liquor being drained -- and rinsed in the flow-through stage, is again wetted preferably with hot washing liquor, again dwells in the folded state, is again rinsed in the flow-through stage, is acid-treated for a certain time and that preferably also in the flow-through stage, and is finally rinsed.
Claim 10
Dependent Claim
41 words
A process according to claim 1, wherein the printed material is wetted in a pre-rinsing stage, said pre-rinsing stage being effected by spraying the material intensively with fresh water and a rinsing liquor comes into contact with the material only once.
Claim 11
Dependent Claim
25 words
A process according to claim 8, wherein the material is squeezed or dehydrated by suction and the rinsing step is then repeated at least once.
Claim 12
Dependent Claim
38 words
A process according to claim 8, wherein the material comes into contact with large volumes of fresh water on having dwelled in said steeping bowl and in the subsequent washing steps which are performed in the flow-through stage.
Claim 13
Dependent Claim
47 words
A process according to claim 1, wherein said printed material is initially plaited into said folded state within said intake leg until a certain height of material is reached and a certain weight of material is achieved to cause said material to be pushed through said J-box.
Claim 14
Dependent Claim
34 words
A process according to claim 11, wherein said printed material is plaited into uniform small waves which stand vertical to larger material folds that extend from one wall of the J-box to the other.
Claim 15
Dependent Claim
44 words
A process according to claim 1, wherein said printed material is drawn from the steeping bowl above a liquid level therein by a drawoff roller, the printed material is squeezed between a pair of rollers and is passed to said intensive through-flow washing stage.
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) | 1979-12-14 | 1980-06-14 | 1980-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-12-14 | 1984-06-14 | 1984-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-12-14 | 1988-06-14 | 1988-12-14 | $7700.00 | Window Closed / Lapsed |