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US 2014/0345066 A1Published application
Formulations Having Benzoate Dye Carriers for Meta-Aramid Articles
OwnerAleksandr T. Gamble, Donate A. Felipe +1inventors
InventorsAleksandr T. Gamble, Donate A. Felipe, Rebecca J. Wachowicz
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Abstract
Glycol ether benzoates, glycol benzoates and methyl benzoate facilitate the dyeing of the meta-aramid article, e.g., fibers, at or near neutral pH. The addition of an anionic surfactant, such as sodium lauryl sulfate, enhances the performance of the benzoates.
Claims11
An aqueous dye formulation comprising:
- A. A cationic dye;
- B. At least one of a glycol ether benzoate and glycol benzoate;
- C. Water;
- and
- D. Optionally, an anionic surfactant.
2 more elements
A method of dyeing a meta-aramid article, the method comprising the step of contacting the meta-aramid article with a dye formulation comprising:
- A. A cationic dye;
- B. At least one of a glycol ether benzoate and glycol benzoate;
- C. Water;
- and
- D. Optionally, an anionic surfactant;
- the dye formulation having a pH of 6-8.
3 more elements
Dependencies are inferred from the claim text.