Textile Sizing Agents Recovery by Ultrafiltration

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Sizing materials, such as starches and water-soluble polymers (polyvinyl alcohol), are used to facilitate the weaving process. The woven cloth is later washed to remove the size, resulting in a diluted solution of the sizing material. Ultrafiltration (UF) can be used to recover and concentrate the sizing material for reuse, and to produce good quality water permeate for discharge or reuse.

Wash water containing sizing materials is harmful to the environment. The sizing materials are also expensive, and it is possible to reuse the materials several times. This has resulted in a growing interest in UF systems in the textile industry.

Vaisala K-PATENTS® Process Refractometer PR-43-G measures the concentration of the sizing agent and r provides real-time information on when the required concentration level is obtained.

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Textile Sizing Agents Recovery by Ultrafiltration

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