Some properties of purified alkylated polyvinyl alcohols (APVA) which were obtained by solution polymerization of vinyl acetate with each alcohol of C8, C12, C16 and C18 were investigated in relation to applications for textile. The properties selected for test were antistatic effect, softenning effect, the properties as resin finishing assistant and as dyeing assistant. The results were as follows : 1. Antistatic effect : APVA had no effect for nylon. 2. Softening effect : Cotton fabrics treated with APVA were generally softer than that with PVA 3. Properties as resin finishing assistant : APVA could be compatible with thermo-setting amino resin for resin finishing, but did not serve to prevent decreases in tearing strength and flex abrasion resistance of resin treated fabrics. 4. Properties as dyeing assistant : The restraining and the migration effects of APVA were observed in an acid, a premetalized acid, a disperse, a vat and a sulphur dyebath. The restraining effect for the vat color and the migration effect for the sulphur color were excellent
UV spectra were measured for the aliphatc saturated aldehydes and ketones as their 2, 4-DNPHs. Maximum of absorption spectrum was indicated at 358mμ and 363mμ in their ethanol solution, respectively, and the absorption curve of aldehydes 2, 4-DNPHs was similar to the pattern of ketones 2, 4-DNPHs. Therfore, the mixture in neutral ethanol solution, was possible to determine for the total carbonul compounds, but determination of aldehyde 2, 4-DNPHs in the presence of ketone 2, 4-DNPHs was impossible. When, this neutra solution of aldehydes and ketones 2, 4-DNPHs were made alkaline absorption maximum in UV region was disappeared, instead, a maxium of absorption spectrum was appeared in visible region (Max. at 440mμ ). The absorption appeared at 440mμ was quite similar to its of UV region. The color-fading against lapst time was only existed in aldehyde 2, 4-DNPHs at visible region, but this was not seen in ketone 2, 4-DNPHs. The color-fading velosity was proportional to the molar concentration of aldehyde 2, 4-DNPHs. It was found that mixture of aldehydes and ketones could be determined by absorption spectra of the neutral solution in UV region and color-fading velosity in the visible region from alkaline solution.
Purified polyethylene glycol and nonyl phenol were mixed with distilled polyoxyethylene nonyl phenol ether, and the results were investigated for clouding points, wetting properties and foaming properties of the mixtures. The result compared with the effect of variation on the distribution of additive oxyethylene mole numbers studied in the previous reports. Added polyethylene glycol had no effect on clouding points and foaming properties, but had slight effect on wetting properties. On the other hand, nonyl phenol had no effect on wetting properties, but had remorkable effect on foaming properties and clouding points, and also it had minor effect on the form of the curves, the forming properties plotted against temperature. As compared with the result of the previous reports, it was believed that the effect on added impurites were greater than the effect of the distribution of additive oxyethylene mole numbers.