US4624023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for washing textile material
Assignee: Truetzschler Nonwovens GmbH
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Filing: 1984-10-01
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Granted: 1986-11-25
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Expires: 2004-10-01
Abstract
Abstract A process for washing textile material wherein a non-foamed washing liquor, combined with a foam-producing chemical, is applied to a continuously fed textile material, the foam is produced on the textile material by effecting alternating compression and pressure relief of the textile surface while simultaneously loosening the dirt, and finally the foam, and thus the dirt dissolved in and taken up by the foam, is removed by suction.
Inventors
- 👤 Gerold Fleissner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:38
CPC Classifications
D; D06; D06B; D06B5/00; D06B5/02; D06B5/08; D06B19/00; D06B19/0088; D06B19/0094
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
108 words
A process for washing textile material, especially pile-type carpets, by working foam into the textile material and by removing the foam thereafter, characterized in that a pile side of a continuously fed textile material is continuously wetted at an elevated temperature with a non-foamed washing liquor containing a foam-producing chemical, the foam is produced thereafter on the pile side of the textile material by alternating compression and pressure relief of the surface of the textile material by contacting the surface with a stroking means, thus loosening the dirt, and, for dirt removal, the foam is subsequently continuously removed by suction from the pile side of the textile material.
Claim 2
Dependent Claim
108 words
A process for washing textile material, especially pile-type carpets, by working foam into the textile material and by removing the foam thereafter, characterized in that a pile side of a continuously fed textile material is continuously wetted at an elevated temperature with a non-foamed washing liquor containing a foam-producing chemical, the foam is produced thereafter on the pile side of the textile material by alternating compression and pressure relief of the surface of the textile material by contacting the surface with a stroking means, thus loosening the dirt, and, for dirt removal, the foam is subsequently continuously removed by suction from the pile side of the textile material.
Claim 3
Independent Claim
101 words
An apparatus for foam washing of a continuously fed length of textile material having a pile surface on one side which comprises a plurality of series-arranged textile-treating means associated with the textile material including (a) an applicator means for applying a foam-producing liquid to the pile side of the textile material; (b) a foam-producing device which controls the liquid wetted textile material and which alternatively effects compression and pressure relief thereof on the pile side of the textile material; and (c) suction means for removing the foam and loosened dirt or like particles from the pile side of the textile material.
Claim 4
Independent Claim
101 words
An apparatus for foam washing of a continuously fed length of textile material having a pile surface on one side which comprises a plurality of series-arranged textile-treating means associated with the textile material including (a) an applicator means for applying a foam-producing liquid to the pile side of the textile material; (b) a foam-producing device which controls the liquid wetted textile material and which alternatively effects compression and pressure relief thereof on the pile side of the textile material; and (c) suction means for removing the foam and loosened dirt or like particles from the pile side of the textile material.
Claim 5
Dependent Claim
21 words
An apparatus according to claim 2 further comprising means for transporting the length of textile material through said series-arranged textile-treating means.
Claim 6
Dependent Claim
50 words
A process according to claim 1, further comprising passing the foam-containing textile material over a guide roller to cause the pile to become arranged opposite to a device for applying suction to the pile side of the textile material whereby matted down pile is raised during application of the suction.
References Cited (Backward Citations)
US4524589A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-24 | 1990-05-26 | 1990-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-24 | 1994-05-26 | 1994-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-24 | 1998-05-26 | 1998-11-25 | $7700.00 | Window Closed / Lapsed |