The simplified determination and evaluation of content of calcium in cellulose fiber by carbonate coprecipitation processing method.

Sugimoto, Futoshi; Isono, Teizo; Komurasaki, Kazuhiko

doi:10.2115/fiber.57.291

Cited by 2 publications

(1 citation statement)

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“…There is a great deal of literature about the effects of calcium on detergency, but all of them focus on the calcium ions only in the water. The influence of calcium in cotton dyeing has been reported (8,9), yet the influence of calcium initially associated with the fabrics on detergency has not been discussed. Solid particles containing polyvalent metals, such as calcium, exist in soil, and are thought to form ionic bridges with the negatively-charged fabrics, thus making soil removal difficult (10).…”

Section: Introductionmentioning

confidence: 99%

Effects of Calcium Present in Fabric and in Washing Liquor on Detergency.

2003

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Measurement of the amount of calcium present in cotton fabrics, evaluation of the individual calcium contents in the actual washing liquors for the several washing conditions and several detergency tests were conducted, to clarify how calcium existing not only in water used for washing but also in cotton fabrics to be washed does affect on detergency. Calcium content in cotton fabrics was found to range from 80 to 600mg/g fabrics. When the water hardness is low, the ratio of the calcium content in the fabrics to the total calcium content is high, so that the extent of influence caused by calcium present in the fabrics on detergency is relatively high. The detergency tests made clear that the calcium content in cotton fabrics has no influence on detergency at the higher water hardness, but it does have a negative influence at the lower water hardness.

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Section: Introductionmentioning

confidence: 99%