US3849236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flock-texturing method and product
Assignee: CONNECTICUT YANKEE COMMUNITY AVENUE
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Filing: 1973-06-11
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Granted: 1974-11-19
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Expires: 1993-06-11
Abstract
Abstract The invention contemplates a method and product whereby, for certain densities of flock-finish on fabric, the fabric can have a texture, appearance and hand closely akin to and resembling that of natural-leather chamois or suede. The technique relies upon soaking a suitable flock-finished fabric with a dilute solution of compatible adhesive, wringing out and drying the soaked fabric, and then curing the adhesive.
Inventors
- 👤 R Bourdon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:06
CPC Classifications
D; D04; D04H; D04H11/00; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23943
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
120 words
THE METHOD OF TREATING A FLOCK-FINISHED FABRIC WHEREIN THE FLOCK CONSISTS OF SYNTHETIC FIBERS OF UNIFORM DENIER AND LENGTH BONDED AT CORRESPONDING ENDS TO AT LEAST ONE SIDE OF A FABRIC BASE AND UNIFORMLY DISTRIBUTED OVER THE BASE AND ORIENTED NORMAL TO THE BASE, THE FLOCK DENSITY BEING LESS THAN MAXIMUM AND AT LEAST SUCH THAT THE AVERAGE FIBER-TO-FIBER SPACING IS SUBSTANTIALLY LESS THAN PROJECTING FLOCK-FIBER LENGTH, WHICH METHOD COMPRISES SOAKING THE FLOCK-FINISHED FABRIC WITH A DILUTE AQUEOUS SOLUTION OF A HEAT-CURABLE ADHESIVE TO WHICH THE FLOCK IS COMPATIBLE, RANDOMLY FOLDING THE SOAKED FABRIC, WRINGING FROM THE FOLDED FABRIC A SUBSTANTIAL FRACTION OF THE FABRIC-ADHERED SOLUTION, SPREADING THE WRUNG-OUT FABRICS DRYING THE SPREAD AND WRUNG-OUT FABRIC AND THEN HEATING THE
Claim 2
Independent Claim
120 words
THE METHOD OF TREATING A FLOCK-FINISHED FABRIC WHEREIN THE FLOCK CONSISTS OF SYNTHETIC FIBERS OF UNIFORM DENIER AND LENGTH BONDED AT CORRESPONDING ENDS TO AT LEAST ONE SIDE OF A FABRIC BASE AND UNIFORMLY DISTRIBUTED OVER THE BASE AND ORIENTED NORMAL TO THE BASE, THE FLOCK DENSITY BEING LESS THAN MAXIMUM AND AT LEAST SUCH THAT THE AVERAGE FIBER-TO-FIBER SPACING IS SUBSTANTIALLY LESS THAN PROJECTING FLOCK-FIBER LENGTH, WHICH METHOD COMPRISES SOAKING THE FLOCK-FINISHED FABRIC WITH A DILUTE AQUEOUS SOLUTION OF A HEAT-CURABLE ADHESIVE TO WHICH THE FLOCK IS COMPATIBLE, RANDOMLY FOLDING THE SOAKED FABRIC, WRINGING FROM THE FOLDED FABRIC A SUBSTANTIAL FRACTION OF THE FABRIC-ADHERED SOLUTION, SPREADING THE WRUNG-OUT FABRICS DRYING THE SPREAD AND WRUNG-OUT FABRIC AND THEN HEATING THE
Claim 3
Dependent Claim
26 words
The method of claim 1, in which the volume of wrung-out solution is approximately one half that which is fabric-adhered after removal from the soaking solution.
Claim 4
Dependent Claim
19 words
The method of claim 1, in which the flock is viscose rayon and the adhesive is an acrylic-resin adhesive.
Claim 5
Dependent Claim
14 words
The method of claim 1, in which the soaking solution includes a fabric delustrant.
Claim 6
Dependent Claim
12 words
The method of claim 4, in which the delustrant includes titanium dioxide.
Claim 7
Dependent Claim
15 words
The method of claim 1, in which the soaking solution includes an an-ionic softening agent.
Claim 8
Dependent Claim
23 words
The method of claim 3, in which the proportion by weight of adhesive in the solution is in the order of 2 percent.
Claim 9
Dependent Claim
21 words
The method of claim 4, in which the proportion by weight of fabric delustrant is in the order of 5 percent.
Claim 10
Dependent Claim
25 words
The method of claim 6, in which the proportion by weight of an-ionic softening agent in the solution is in the order of 5 percent.
Claim 11
Dependent Claim
123 words
As an article of manufacture, a flock-finished fabric comprising a woven-fabric sheet having front and back faces, an adhesive layer covering one of said faces, precision-cut flock of synthetic fiber of predetermined length and denier rooted at one end to said adhesive layer and projecting normal thereto, the flock density being less than that to produce a full coat of said one face and at least such that the average fiber spacing is substantially less than the projecting length of individual flock fibers, random groups of adjacent flock fibers being adhesively bonded to each other along their adjacent edges in randomly distributed bent-over alignments wherein the orientation of bonded adjacent flock fibers is angularly offset from the local normal to said one face.
Claim 12
Dependent Claim
123 words
As an article of manufacture, a flock-finished fabric comprising a woven-fabric sheet having front and back faces, an adhesive layer covering one of said faces, precision-cut flock of synthetic fiber of predetermined length and denier rooted at one end to said adhesive layer and projecting normal thereto, the flock density being less than that to produce a full coat of said one face and at least such that the average fiber spacing is substantially less than the projecting length of individual flock fibers, random groups of adjacent flock fibers being adhesively bonded to each other along their adjacent edges in randomly distributed bent-over alignments wherein the orientation of bonded adjacent flock fibers is angularly offset from the local normal to said one face.
Claim 13
Dependent Claim
21 words
The articLe of claim 10, in which the average fiber spacing is in the order of magnitude of the flock-fiber diameter.
Claim 14
Dependent Claim
12 words
The article of claim 10, in which the flock is viscose rayon.
Claim 15
Dependent Claim
16 words
The article of claim 12, in which the adhesive layer consists essentially of an acrylic adhesive.
Claim 16
Dependent Claim
16 words
The article of claim 13, in which the bonding adhesive consists essentially of an acrylic component.
Claim 17
Dependent Claim
13 words
The article of claim 10, in which the woven fabric is cotton drill.
Claim 18
Dependent Claim
132 words
The article of claim 10, in which the other of said faces has a covering layer of adhesive, further precision-cut flock of said synthetic fiber of predetermined length and denier rooted at one end to the adhesive layer of said other face and projecting normal thereto, the density of said further flock being less than that to produce a full coat of said other face and at least such that the average fiber spacing is substantially less than the projecting length of individual flock fibers on said other face, random groups of adjacent flock fibers on said other face adhesively bonded to each other along their adjacent edges in randomly distributed bent-over alignments wherein the orientation of bonded adjacent flock fibers is angularly offset from the local normal to said other face.
Claim 19
Dependent Claim
15 words
The article of claim 16, in which flock length on opposite faces is the same.
Claim 20
Dependent Claim
20 words
The article of claim 16, in which flock length on one face is greater than that at the other face.
Claim 21
Dependent Claim
20 words
The article of claim 16, in which denier of the flock on both faces of said fabric is the same.
Claim 22
Dependent Claim
28 words
The article of claim 16, in which denier of the flock on one face of said fabric is greater than that on the other face of said fabric.
Claim 23
Dependent Claim
27 words
The article of claim 16, in which flock density on one face of said fabric is substantially the same as on the other face of said fabric.
Claim 24
Dependent Claim
22 words
The article of claim 16, in which flock density is greater on one face of said fabric than on the other face.
Claim 25
Independent Claim
133 words
The method of treating a flock-finished fabric wherein the flock consists of synthetic fibers of uniform denier and length bonded at single corresponding ends to at least one side of a fabric base and uniformly distributed over the base and oriented normal to the base, the flock density being less than maximum and at least such that the average fiber-to-fiber spacing is substantially less than projecting flock-fiber length, which method comprises soaking the flock-finished fabric with a dilute solution of a heat-curable adhesive to which the flock is compatible, extracting from the folded fabric a substantial fraction of the fabric-adhered solution by compacing the soaked fabric, spreading out the compacted fabric, drying the spread fabric, and then heating the dried fabric to a temperature and for a period sufficient to cure the adhesive.
Claim 26
Independent Claim
133 words
The method of treating a flock-finished fabric wherein the flock consists of synthetic fibers of uniform denier and length bonded at single corresponding ends to at least one side of a fabric base and uniformly distributed over the base and oriented normal to the base, the flock density being less than maximum and at least such that the average fiber-to-fiber spacing is substantially less than projecting flock-fiber length, which method comprises soaking the flock-finished fabric with a dilute solution of a heat-curable adhesive to which the flock is compatible, extracting from the folded fabric a substantial fraction of the fabric-adhered solution by compacing the soaked fabric, spreading out the compacted fabric, drying the spread fabric, and then heating the dried fabric to a temperature and for a period sufficient to cure the adhesive.
Claim 27
Dependent Claim
36 words
The method of claim 23, in which the fabric is flock-finished on both sides, the heat-curable adhesive being selected for compatability with the synthetic fibers of the flocks on both the respective sides of the fabric.
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) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |