Colored lines and methods of making colored lines

A method of making colored monofilament ultrahigh molecular weight polyolefin line, the method comprising the steps of:

• feeding at least one substantially untwisted multifilament ultrahigh molecular weight polyolefin yarn having a length;
• coating the substantially untwisted multifilament yarn with a plurality of colorants in series along the length of the substantially untwisted multifilament yarn;
• twisting the coated multifilament yarn;
• and
• heating the twisted multifilament yarn to a temperature and for a time sufficient to at least partially fuse adjacent filaments together while stretching the yarn to a stretch ratio from about 3 to about 10 to form the colored monofilament ultrahigh molecular weight polyolefin line.

A method of making colored monofilament ultrahigh molecular weight polyolefin line, the method comprising the steps of:

• feeding at least one substantially untwisted multifilament ultrahigh molecular weight polyolefin yarn having a length;
• coating at least a portion the length of the substantially untwisted multifilament yarn with at least one colorant, wherein the at least one colorant has a luminescent response when exposed to ultraviolet light or infrared light;
• twisting the coated multifilament yarn;
• and
• heating the twisted multifilament yarn to a temperature and for a time sufficient to at least partially fuse adjacent filaments together while stretching the yarn to a stretch ratio from about 3 to about 10 to form the colored monofilament ultrahigh molecular weight polyolefin line.