Claims
- 1. A resin-coated sheet material comprising:
- (a) a knit fabric comprising a nonfiberglass, microdenier yarn in a weft in-lay and a generally inelastic stiffness-controlling yarn having a modulus of greater than about 5 grams per denier as a weft insert; and
- (b) a curable resin coated on the fabric.
- 2. The resin-coated sheet material of claim 1 wherein the stiffness-controlling yarn is capable of less than 15% shrinkage.
- 3. The resin-coated sheet material of claim 1 wherein the stiffness-controlling yarn is capable of being annealed in an as knit orientation.
- 4. The resin-coated sheet material of claim 1 wherein the fabric further includes a stretch yarn in the wales of a chain stitch.
- 5. The resin-coated sheet material of claim 4 wherein the stretch yarn was a heat shrinkable, thermoplastic yarn.
- 6. The resin-coated sheet material of claim 1 wherein the fabric includes a fiberglass yarn.
- 7. The resin-coated sheet material of claim 1 wherein the stiffness-controlling yarn is a monofilament yarn.
- 8. The resin-coated sheet material of claim 1 wherein the stiffness-controlling yarn has a denier between 80 and 350.
- 9. The resin-coated sheet material of claim 1 wherein the fabric comprises two or more of said weft insertion yarns and wherein said weft inserting yarns do not pass through the outermost wales of said fabric.
- 10. A resin-coated sheet material comprising:
- (a) a knit fabric comprising a nonfiberglass, microdenier yarn in a weft in-lay and a stretch yarn in the wales of a chain stitch, wherein the fabric has been calendared; and
- (b) a curable resin coated on the fabric.
- 11. The resin-coated sheet material of claim 10 wherein the stretch yarn was a heat shrinkable, thermoplastic yarn and wherein the fabric further includes a fiberglass yarn.
- 12. The resin-coated sheet material of claim 10 wherein the fabric includes a generally inelastic stiffness-controlling yarn having a modulus of greater than about 5 grams per denier as a weft insert.
- 13. The resin-coated sheet material of claim 12 wherein the stiffness-controlling yarn is a monofilament yarn having a denier between 80 and 350.
- 14. The resin-coated sheet material of claim 12 wherein the stretch yarn was a heat shrinkable, thermoplastic yarn, wherein the stiffness-controlling yarn is a monofilament yarn having a denier between 80 and 350, wherein the fabric comprises two or more of said stiffness-controlling yarns and further includes a fiberglass yarn, and wherein said weft insertion yarns do not pass through the outermost wales of said fabric.
- 15. The resin-coated sheet material of claim 10 wherein the fabric includes a fiberglass yarn.
- 16. A method of making the knit fabric of claim 4, the method comprising the steps of:
- (a) knitting the stretch yarn and stiffness-controlling yarn with a warp knitting machine;
- (b) shrinking the fabric;
- (c) calendaring the fabric to reduce the thickness of the fabric; and
- (d) coating a curable resin on the fabric.
- 17. The method of claim 16 wherein the step of shrinking the fabric was carried out with hot air at a temperature of about 120.degree.-180.degree. C.
- 18. The method of claim 17 wherein the step of shrinking the fabric was carried out fully before the step of calendaring the fabric.
- 19. The method of claim 17 wherein the step of shrinking the fabric was carried out simultaneously with the step of calendaring the fabric.
- 20. The method of claim 17 further comprising a step of annealing the fabric to set the shape of the stiffness-controlling yarn in its knitted orientation.
Parent Case Info
This application is a continuation-in-part of Ser. No. 08/009,923, filed Jan. 25, 1993, now U.S. Pat. No. 5,512,354.
US Referenced Citations (17)
Foreign Referenced Citations (3)
Number |
Date |
Country |
0407056 |
Jan 1991 |
EPX |
2257440 |
Jan 1993 |
GBX |
WO9002539 |
Mar 1990 |
WOX |
Non-Patent Literature Citations (4)
Entry |
M. Isaacs III, Textile World, 48-50, (Mar. 1991). |
Translation of "Microfasern--Modewelle Oder Standard von Morgen?", I. Heidenreich and H. Ninow, Melliand Textilberichte Dec. 1991, pp. 971 to 977. |
International Search Report for PCT/US94/00737. |
Heidenreich et al, Melliand English, Dec. 1991, E 391-E 394. |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
09923 |
Jan 1993 |
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