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US 2023/0219318 A1Published application
Breathable film
AssigneeTama Group
InventorsReuven HUGI, Hagai PAZ, Ran COHEN, Yori COSTA
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Abstract
A film comprising a perforated layer, wherein the perforated layer is characterized by water vapor transmission rate (WVTR) of at least 300 gr/m2/day; and wherein the perforated layer is characterized by a liquid permeability of less than 0.6 gr when measured according to AATCC 35. Further, methods of manufacturing the composition of the invention are provided.
Claims24
A film comprising a perforated layer, wherein at least 95% of openings within said perforated layer are of a diameter of less than 60 μm;
- wherein a surface area of said openings is between 0.006 and 10% of the total surface area of said perforated layer;
- said perforated layer is characterized by water vapor transmission rate (WVTR) of at least 300 gr/m2/day;
- and wherein said perforated layer is characterized by a liquid permeability of less than 0.6 gr when measured according to AATCC 35.
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Dependencies are inferred from the claim text.