US4419160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic dyeing of thermoplastic non-woven fabric
Assignee: Burlington Industries Inc
•
Filing: 1982-01-15
•
Granted: 1983-12-06
•
Expires: 2002-01-15
Abstract
Abstract The ultrasonically bonded point bonds of non-woven fabric are dyed by applying liquid dye to the contacting crossing points of the fibers before or at the same time that they are bonded by the application of ultrasonic energy, such energy being used not only to effect the point bonds but also to drive and fix the dye in such point bonds.
Inventors
- 👤 Kenneth Y. Wang
- 👤 Bobby L. McConnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:47
CPC Classifications
D; D06; D06B; D06B13/00; B; B29; B29C; B29C65/00; B29C65/02; B29C65/08; B29C65/083; B29C65/086; B29C66/00; B29C66/01; B29C66/05; B29C66/20; B29C66/21; B29C66/305; B29C66/345; B29C66/3452; B29C66/69; B29C66/70; B29C66/72; B29C66/729; B29C66/7294; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81427; B29C66/8145; B29C66/81463; B29C66/81467; B29C66/83; B29C66/834; B29C66/8351; B29C66/83511; D04; D04H; D04H1/00; D04H1/40; D04H1/54; D04H1/555; D06B19/00; D06B19/0005; B29C65/78; B29C65/7841; B29C65/7847; B29C66/40; B29C66/41; B29C66/45; B29C66/71; B29C66/81469; B29C66/8341; B29C66/83411; B29K; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/0854; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1737; Y10T442/00; Y10T442/60; Y10T442/69
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
100 words
A process of producing and dyeing non-woven fabric of ultrasonically fusible fibers with an ultrasonic welding machine having horn means and opposed anvil means, the steps comprising: forming a web of random, loose, ultrasonically fusible fibers; distributing a fluent dye directly onto the web; and advancing the web with the dye thereon between the horn means and anvil means of the ultrasonic welding machine to utilize the ultrasonic energy thereof to simultaneously bond the fibers in the web at their contacting crossing points to form non-woven fabric and drive the dye into the bond points and fix the dye therein.
Claim 2
Dependent Claim
100 words
A process of producing and dyeing non-woven fabric of ultrasonically fusible fibers with an ultrasonic welding machine having horn means and opposed anvil means, the steps comprising: forming a web of random, loose, ultrasonically fusible fibers; distributing a fluent dye directly onto the web; and advancing the web with the dye thereon between the horn means and anvil means of the ultrasonic welding machine to utilize the ultrasonic energy thereof to simultaneously bond the fibers in the web at their contacting crossing points to form non-woven fabric and drive the dye into the bond points and fix the dye therein.
Claim 3
Dependent Claim
14 words
The process defined in claim 1 in which the dye is a disperse dye.
Claim 4
Dependent Claim
30 words
The process defined in claims 1 or 2 in which the dye is distributed on the entire surface of the web in advance of the passage thereof through the machine.
Claim 5
Dependent Claim
26 words
The process defined in claim 3 including the step of removing unfixed dye from the non-woven fabric to leave dye fixed only in the bond points.
Claim 6
Dependent Claim
27 words
The process defined in claim 3 including the step of subjecting the non-woven fabric to a process for fixing therein dye thereon unfixed by the ultrasonic energy.
Claim 7
Dependent Claim
65 words
The process defined in claims 1 or 2 in which the anvil means is a roll in rolling contact with the web, wherein said distributing step is accomplished by coating the dye onto the roll anvil means in advance of its rolling contact with the web whereby the roll anvil means transfers dye to the web at the time of application of ultrasonic energy thereto.
Claim 8
Dependent Claim
44 words
The process defined in claim 6 in which the roll anvil means is patterned with anvil points and the dye is coated onto the tops of the points whereby the bond points are dyed in a pattern corresponding to that of the anvil points.
Claim 9
Dependent Claim
21 words
The process defined in claim 7 in which the dye is coated onto the roll anvil means by a kiss roll.
Claim 10
Dependent Claim
32 words
The process as defined in claim 1 wherein said distributing step is accomplished by spraying liquid dye onto the web just before the web is contacted by the horn and anvil means.
Claim 11
Dependent Claim
135 words
Apparatus for producing and dyeing non-woven fabric of ultrasonically fusible fibers comprising: an ultrasonic welding machine having horn means and opposed anvil means, said anvil means comprising a roll having a pattern of anvil points; means for advancing a web of random, loose ultrasonically fusible fibers between said horn means and said anvil means; and means for distributing a fluent dye directly onto the web so that at least those contacting crossing points of the fiber fused and bonded by the ultrasonic energy of the machine are coated with the dye at the time of the application of the ultrasonic energy thereto and the dye is driven into and fixed in said bond points, said distributing means comprising the tops of said anvil points and a kiss roll for applying the dye to said tops.
Claim 12
Dependent Claim
135 words
Apparatus for producing and dyeing non-woven fabric of ultrasonically fusible fibers comprising: an ultrasonic welding machine having horn means and opposed anvil means, said anvil means comprising a roll having a pattern of anvil points; means for advancing a web of random, loose ultrasonically fusible fibers between said horn means and said anvil means; and means for distributing a fluent dye directly onto the web so that at least those contacting crossing points of the fiber fused and bonded by the ultrasonic energy of the machine are coated with the dye at the time of the application of the ultrasonic energy thereto and the dye is driven into and fixed in said bond points, said distributing means comprising the tops of said anvil points and a kiss roll for applying the dye to said tops.
Claim 13
Dependent Claim
27 words
The apparatus defined in claim 10 further comprising a small diameter compression roll in operative association with the anvil means just in front of the horn means.
References Cited (Backward Citations)
US2464301A
Cited
US3575752A
Cited
US3765974A
Cited
US3733234A
Cited
US3868214A
Cited
US3989448A
Cited
US4147507A
Cited
US3966519A
Cited
US4049374A
Cited
US4086112A
Cited
US4259399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-05 | 1987-06-06 | 1987-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-05 | 1991-06-06 | 1991-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-05 | 1995-06-06 | 1995-12-06 | $7700.00 | Window Closed / Lapsed |