Appeal No. 1996-1992
Application 07/898,373
i) an average opacity value of said first portion that is at least about 0.5 greater
than the average opacity value of said second portion;
ii) a difference in average opacity between said first portion and said second
portion which is less than 10, and a difference between said first and second
portions in their respective average of either said L values or said a values
or said b values of at least about 5; or
iii) a difference of at least about 10 or greater in average opacity between said
first portion and said second portion, and the sum of the absolute values of a
and b of the first portion following extraction of said casing with water and
methanol is at least 10.
63. A peelable food casing for formation of skinless frankfurters comprising a
shirred nonfiber-reinforced elongated tube having adjacent first and second longitudinal
portions of at least 50 feet in length wherein at least one colorant or opacifier is dispersed
in at least one of said portions throughout a wall of said tube to provide it with optical
values which are different from the other portion, and wherein the second portion has a
transverse width less than that for said first portion and said first and second portions have
Hunter L, a, b values and opacity values meeting at least one of the following conditions:
i) an average opacity value of said first portion that is at least about 0.5 greater
than the average opacity value of said second portion;
ii) a difference in average opacity between said first portion and said second
portion which is less than 10, and a difference between said first and second
portions in their respective averages of either said L values of said a values
or said b values of at least about 5; or
iii) a difference of at least about 10 or greater in average opacity between said
first portion and said second portion, and the sum of the absolute values of a
and b of the first portion following extraction of said casing with water and
methanol is at least 10; and
wherein said tube has a tube wall thickness between about 0.8 to about 2.0 mils and a
tube circumference less than 115 mm with said second longitudinal portion having an
opacity of less than about 5.0% and a transverse width of at least about 3/16 inch.
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