Rewet test

Figure 30. Rewetting data. Capillary rise method U. Baumgarte Melliand Tex-tilberichte, 49, 1306 (1968). (mm) height of the elevation of test solution. ((- -) Cto-i SAE (- -) Cn-n SAE (-Q-) C1Jf.16 SAE (-M ) NPE)...

Rice s historic dyestuff recognition test results corroborated with those of A.A.T.C.C. Colorfastness tests. The absence of color transfer in acetic acid, but the ready transfer of yellow color in ammonium hydroxide indicates a yellow acid dye is present. Less yellow was transferred when the fabric first moistened with ammonium hydroxide is rewetted with acetic acid. 

Room temperature reseal pressure data was collected simultaneously with bubble point data. The same inverted bubble point test configuration used to measure the bubble point was used to measure reseal pressures. A bubble point test ceases once pressurant gas breaks through the wetted pore. To commence a reseal point test, the pressurant gas flow rate beneath the screen is slowly reduced in fixed quasi-static increments to slowly encroach upon the differential pressure across the screen at which the screen reseals. Eventually the screen rewets/reseals itself as evident in visualization of no more bubbles... 

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