US2018021182A1PendingUtilityA1
Medical towel and method for manufacturing
Est. expiryAug 4, 2030(~4.1 yrs left)· nominal 20-yr term from priority
A61F 2013/00348A61B 46/40A61F 13/36Y10T428/249921
39
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Claims
Abstract
A dye free medical towel and a method of making thereof, comprising natural, dye free, cotton absorbent cloth material, the towel having a first reduced glare characteristic and reduced linting.
Claims
exact text as granted — not AI-modified1 .- 20 . (canceled)
21 . A method for producing a dye-free medical towel from a dye-free cotton material, comprising:
preparing the dye-free cotton material for processing by:
disposing the dye-free cotton material into a container and adding first water at a first temperature to the container; and
adding a scouring agent to the container to form a first solution, the first solution including the first water and the scouring agent, and soaking the dye-free cotton material in the first solution;
degreasing, after the preparing, the dye-free cotton material by:
heating the solution to a second temperature greater than the first;
adding a degreasing agent to the container to form a second solution, the second solution including the first water, the scouring agent, and the degreasing agent, and soaking the dye-free cotton material in the second solution; and
removing the second solution;
forming, after the degreasing, the dye-free cotton material into a dye-free medical towel.
22 . The method of claim 21 , wherein the method further comprises, after the degreasing, rinsing the dye-free material.
23 . The method of claim 21 , wherein the first temperature is about 20 degrees Celsius and the second temperature is about 120 degrees Celsius.
24 . The method of claim 21 , wherein forming the dye-free cotton material into a dye-free medical towel further includes:
drying the dye-free cotton material; and cutting the dye-free cotton material into a rectangular shape.
25 . The method of claim 21 , wherein degreasing the dye-free cotton material further includes adding a non-chlorine bleach, and wherein the first solution includes the non-chlorine bleach.
26 . The method of claim 25 , wherein the non-chlorine bleach is a hydrogen peroxide solution.
27 . The method of claim 21 , wherein the degreasing agent is a sodium hydroxide solution.
28 . The method of claim 21 , wherein the dye-free medical towel has a lint release less than 700,000 particles of 0.5 micron size or greater, an absorbency rate greater than 2.0 mm/second, and a whiteness of less than or equal to 50% WI-CIE.
29 . The method of claim 21 , wherein the dye-free medical towel has a reflectivity less than 75 percent at a wavelength of between 400 nm and 750 nm.
30 . A dye free medical towel obtainable by the method of claim 21 , comprising:
a cotton absorbent cloth, having:
a reflectance percentage value of greater than about 25 and less than about 75, at a wavelength of between about 360 nm and about 750 nm,
a whiteness value of less than about 50% WI-CIE,
an absorbency wicking rate of greater than about 2 millimeters per second; and
a lint release less than 700,000 particles of 0.5 micron size or greater as measured by a Gelbo-Flex test.
31 . The dye free medical towel of claim 30 , wherein the color of the cotton absorbent cloth is substantially pantone 400.
32 . The dye free medical towel of claim 30 , wherein the cotton absorbent cloth has a reflectance percentage value of greater than about 25 and less than about 70, between about 400 nm and about 700 nm.
33 . The dye free medical towel of claim 30 , wherein the cotton absorbent cloth has a weight of water per weight of fabric ratio of greater than about 3 as measured by ASTM 4772.
34 . The dye free medical towel of claim 30 , wherein the absorbency wicking rate is greater than about 3 millimeters per second.
35 . The dye free medical towel of claim 30 , wherein the whiteness value is less than about 35% WI-CIE.
36 . A dye free medical towel obtainable by the method of claim 21 , comprising:
a non-irritant woven cotton absorbent cloth having:
a reflectance percentage value of greater than about 50 and less than about 70, at a wavelength of between about 400 nm and about 700 nm,
a whiteness value of less than about 25% WI-CIE,
an absorbency wicking rate of greater than about 2 millimeters per second; and
a lint release less than about 100,000 particles of 0.3 micron size or greater as measured by a Gelbo-Flex test.
37 . The dye free medical towel of claim 36 , wherein the absorbency rate is greater than about 3 millimeters per second.
38 . The dye free medical towel of claim 36 , wherein the non-irritant woven cotton absorbent cloth has a lint release of less than about 70,000 particles of 0.5 micron size or greater as measured by a Gelbo-Flex test.
39 . The dye free medical towel of claim 36 , wherein the non-irritant woven cotton absorbent cloth includes a color value of less than about 0.4 measured in the yellow spectrum.
40 . The dye free medical towel of claim 36 , wherein non-irritant woven cotton absorbent cloth has a weight of water per weight of fabric ratio of greater than about 3 as measured by ASTM 4772.Cited by (0)
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