The disclosure provides a fibrous panel including a basemat and a porous veil disposed on at least one side of the basemat, the veil having a first surface in contact with the one side of the basemat and a second facing surface opposite the first surface, the veil having a patterned coating disposed
The disclosure provides a fibrous panel including a basemat and a porous veil disposed on at least one side of the basemat, the veil having a first surface in contact with the one side of the basemat and a second facing surface opposite the first surface, the veil having a patterned coating disposed on the second facing surface, the patterned coating including defined areas without any coating and defined areas with at least a single layer of coating. The disclosure further provides a method of making a fibrous panel according to the disclosure.
대표청구항▼
1. A fibrous panel comprising: a basemat and a porous veil disposed on at least one side of the basemat, the veil having a first surface in contact with the one side of the basemat and a second facing surface opposite the first surface, wherein a substantially monolithic appearing patterned coating
1. A fibrous panel comprising: a basemat and a porous veil disposed on at least one side of the basemat, the veil having a first surface in contact with the one side of the basemat and a second facing surface opposite the first surface, wherein a substantially monolithic appearing patterned coating including defined areas without any coating and defined areas with at least a single layer of coating is disposed on the second facing surface of the veil, wherein the pattern of the substantially monolithic appearing patterned coating is regularly repeating. 2. The panel of claim 1, wherein the defined areas with at least a single layer of coating comprises defined areas with a single layer of coating and defined areas with multiple layers of coating. 3. The fibrous panel of claim 1, wherein the defined areas with at least a single layer of coating are arranged to provide uncoated areas through the patterned coating such that the pores of the porous veil are accessible. 4. The fibrous panel of claim 1, wherein the substantially monolithic appearing patterned coating provides an acoustic absorption of about 0.55 to about 1.2 NRC, as measured by ASTM C423. 5. The fibrous panel of claim 1, wherein the substantially monolithic appearing patterned coating provides an acoustic transmission loss (CAC) of about 24 to about 36, as measured by ASTM E1414. 6. The fibrous panel of claim 1, wherein the substantially monolithic appearing patterned coating provides an air flow resistance of about 100-2500 l/m2/s, as measured by the air flow porosity test, ASTM. 7. The fibrous panel of claim 1, wherein the veil comprises a nonwoven fiberglass material. 8. The fibrous panel of claim 3, wherein at least one dimension of the defined areas without any coating in the patterned coating disposed on the second facing surface of the veil is larger than the diameter of the pores of the porous veil material. 9. The fibrous panel of claim 3, wherein the substantially monolithic appearing patterned coating comprises 0.05 uncoated areas per square foot. 10. The fibrous panel of claim 1, wherein at least 3% of the surface of the veil is coated with at least a single layer of coating. 11. The fibrous panel of claim 1, wherein the fibrous panel is a ceiling tile or acoustic absorber. 12. A method of making a fibrous panel according to claim 1, comprising providing a fibrous panel including a basemat and a porous veil disposed on at least one side of the basemat, the veil having a first surface in contact with the one side of the basemat and a second facing surface opposite the first surface, and printing the substantially monolithic appearing patterned coating on the second facing surface of the veil, wherein the substantially monolithic appearing patterned coating includes defined areas without any coating and defined areas with at least a single layer of coating. 13. The method of claim 12, wherein the printing comprises a printing method selected from the group consisting of offset printing, flexography, inkjet printing, xerography, rotogravure, screen printing, and combinations thereof. 14. The method of claim 12, wherein the printing comprises offset printing. 15. The fibrous panel of claim 1, wherein the defined areas with at least a single layer of coating comprises defined areas with multiple layers of coating.
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