Samuel E Jones

US Patent:

53782429, Jan 3, 1995

Filed:

Dec 22, 1992

Appl. No.:

7/994718

Inventors:

Nick J. Christie - Burlington NC
Samuel G. Jones - Blairs VA

Assignee:

Apollo Chemical Company - Burlington NC

International Classification:

D06B 100

US Classification:

8137

Abstract:

A liquid alkali for use in soaping off of cotton and cotton blended fabrics. The liquid alkali is a water-based solution of an alkali metal hydroxide and an alkali metal silicate. Preferably the composition is an aqueous mixture of potassium hydroxide and sodium silicate. In the most preferred embodiment the composition includes 35 wt % potassium hydroxide at a 45 wt % concentration, 25 wt % sodium silicate at 50. degree. Baume, and the balance water. In an alternative embodiment, up to 5 wt % of a borate is added.

US Patent:

53726111, Dec 13, 1994

Filed:

Sep 30, 1992

Appl. No.:

7/954589

Inventors:

Nick J. Christie - Burlington NC
Samuel G. Jones - Blairs VA

Assignee:

Apollo Chemical Corporation - Graham NC

International Classification:

D06M 1182
D06P 138

US Classification:

8543

Abstract:

A liquid alkali composition for use in fiber reactive dyeing of cotton and cotton blended fabrics or the like. The liquid alkali is a water-based solution of an alkali metal hydroxide and an alkali metal silicate. Preferably the composition is an aqueous mixture of potassium hydroxide and sodium silicate. In the most preferred embodiment the composition includes 35 wt % potassium hydroxide at a 45 wt % concentration, 25 wt % sodium silicate at 50. degree. Baume, 5 wt % of a borate, and the balance water. The resulting solution has a high enough pH to achieve reaction between the dye and fiber but is sufficiently buffered to achieve this reaction slowly so that the fiber reactive dyes fix in a level, uniform fashion.