Abstract: The disclosure relates to a method for decolorization of a dye-colored synthetic polymer, which includes the steps of treating a dye-colored synthetic polymer, such as polyester, with a treatment composition at pH 6 or less, the treatment composition comprising sodium formaldehyde sulfoxylate, water, and a ketone. The resulting decolorized synthetic polymer is then separated from the treatment composition.

Abstract: The disclosure relates to a method for decolorization of a dye-colored synthetic polymer, which includes the steps of treating a dye-colored synthetic polymer, such as polyester, with a treatment composition at pH 6 or less, the treatment composition comprising sodium formaldehyde sulfoxylate, water, and a ketone. The resulting decolorized synthetic polymer is then separated from the treatment composition.

Abstract: The disclosure relates to a method for decolorization of a dye-colored synthetic polymer, which includes the steps of treating a dye-colored synthetic polymer, such as polyester, with a treatment composition at pH 6 or less, the treatment composition comprising sodium formaldehyde sulfoxylate, water, and a ketone. The resulting decolorized synthetic polymer is then separated from the treatment composition.

Abstract: A convertible finger ring including a ring band supporting a gem mount, the ring band being generally U-shaped to provide resilient arms. The gem mount is received between the arms of the ring band at the ends thereof. A pin is disposed axially through the arms and gem mount to define a pivot upon which the gem mount may be rotated relative with respect to the ring band arms to provide either a pendant or ring configuration. The abutting faces of the ring band and gem mount are provided with complimentary projections and detents so that the resilient force of the ring band arms urges them into engagement to maintain the selected configuration. A shoulder portion of the gem mount prevents axial rotation beyond the finger ring and pendant configurations.