Über die Substantivität einiger Benzidinfarbstoffe

Schramek, W.; Götte, E.

doi:10.1007/bf02556583

Cited by 13 publications

(2 citation statements)

References 16 publications

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“…Current theories of substantive dyeing emphasize the colloidal nature of the substantive colors in the dye bath as well as the relationship between the particle sizes of the dye micelles and their characteristic dyeing properties. Schaffer (16), and Schramek and Gotte (17) have measured the particle size of a variety of dyes in solution, and Rose (16) has drawn attention to particle size and the dyeing of cellulose. Schaffer states that the particle diameter of 4.5 millimicrons represents the limiting size above which dyeing does not occur on cotton.…”

Section: Dyeing Cottonmentioning

confidence: 99%

“…Schaffer states that the particle diameter of 4.5 millimicrons represents the limiting size above which dyeing does not occur on cotton. Schramek and Gótte (17), and Ostwald (IS) have studied the effect of electrolytes on the dispersion of substantive dyes. Weltzien and Schultze (19) have studied the effect of electrolytes in the dye bath as well as in the fibers on the dyeing process.…”

Section: Dyeing Cottonmentioning

confidence: 99%

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Dyeing Cotton Substantive Dyes and Salt Sensitivity

Lenher¹,

Smith²

1935

Ind. Eng. Chem.

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CHEMISTRYappears exceptional, as it was more difficult to stabilize than the other untreated gasolines studied or than an acid-treated gasoline from the same stock.5. The critical oxidation potential of an inhibitor is related to its antioxidant power but is not an exact index of its efficacy.6. In predicting storage stability, induction period appears the most reliable single test. High copper-dish gum in some cases accompanies instability in storage, while increase in copper-dish gum and in peroxide number during the early part of a storage period denotes approaching deterioration in other respects, particularly formation of air-jet gum.

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Section: Dyeing Cottonmentioning

confidence: 99%

Section: Dyeing Cottonmentioning

confidence: 99%

Dyeing Cotton Substantive Dyes and Salt Sensitivity

Lenher¹,

Smith²

1935

Ind. Eng. Chem.

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Über das Wesen der Substantivität

Schirm¹

1935

J. Prakt. Chem.

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Ausgehend von den bisherigen Vorstellungen über das Wesen der Substantivität, die als unzureichend und teilweise irrig nachgewiesen werden, und fußend auf der Erkenntnis, daß Restvalenzen ungesättigter Atomgruppen die Ursache der Substantivität sein müssen, wird eine neue Hypothese aufgestellt, die besagt, daß bei allen substantiven Farbstoffen und Zwischen‐produkten ein vielgliedriges System konjugierter Doppelbindungen vorhanden ist, dessen Restvalenzen zusammen mit denen etwa vorhandener auxochromer Gruppen die Substantivität verursachen. Die Richtigkeit dieser Hypothese wird an Hand typischer substantiver Farbstoffe und substantivierender zwischenprodukte nachgewiesen. Anschließend wird die Schwächung und Vernichtung der Substantivität durch „störende”︁ Gruppen erörtert und zuletzt gezeigt, daß die neue Hypothese auch als „Arbeitshypothese”︁ nützlich sein kann, was durch eigene Versuche belegt wird.

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Physikalisch-chemische Grundlagen der Färbevorgänge

Zollinger

1958

Chemie Der Azofarbstoffe

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Über die Substantivität einiger Benzidinfarbstoffe

Cited by 13 publications

References 16 publications

Dyeing Cotton Substantive Dyes and Salt Sensitivity

Dyeing Cotton Substantive Dyes and Salt Sensitivity

Über das Wesen der Substantivität

Physikalisch-chemische Grundlagen der Färbevorgänge

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