Notes
Premetallized …
Premetallized Dye is a process for dyeing nylon with acid or premetallized acid dyes is provided wherein the dye bath is brought to a temperature of 160°F-230°F and a pH of 5.5-4.0, followed by the gradual addition of sulfamic acid to lower the pH to 3.7-2.25, thereby improving dye exhaustion.
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