Abstract:
An aluminum acetate salt solution containing sodium and chloride ions is prepared by reaction of aqueous aluminum chloride and sodium acetate. It is suitable for use as a catalyst in the treatment of cellulosic-containing textiles with formaldehyde or a formaldehyde-amide adduct crosslinking agent to produce durable press properties in the finished material. There is no discoloration in the thus-treated fabric which also exhibits greater strength than is normally present in fabric treated to the same level of wrinkle resistance with an aluminum salt catalyst.
Abstract:
A catalyst system composed of aluminum chlorhydroxide [Al.sub.2 (OH).sub.5 Cl] and hydrogen peroxide [H.sub.2 O.sub.2 ] is disclosed which through synergistic interaction of these components is highly efficient and effective in treatments of cellulose-containing textiles with formaldehyde-amide adduct crosslinking agents. Products with durable-press properties are produced through use of the new catalyst system in treatments employing flash curing conditions, i.e., short processing times at high temperatures, as well as in treatments employing curing temperatures down to 130.degree. C. with longer processing times. Unlike previously known synergistically activated catalyst systems based upon Al.sub.2 (OH).sub.5 Cl, the presently disclosed system utilizes the combination of Al.sub.2 (OH).sub.5 Cl with H.sub.2 O.sub.2, an oxidizing agent, rather than with an acid or a salt with latent acidic or Lewis acid properties.
Abstract translation:公开了由氢氧化铝[Al 2(OH)5 Cl]和过氧化氢[H 2 O 2]组成的催化剂体系,其通过这些组分的协同相互作用在使用甲醛 - 酰胺加合物交联剂处理含纤维素的纺织品中是高效且有效的。 具有耐久冲压性能的产品通过使用新的催化剂体系在使用闪光固化条件的处理中生产,即在高温下的加工时间短,以及在130℃以下的固化温度下处理较长的处理时间。 与先前已知的基于Al 2(OH)5 Cl的协同活化催化剂体系不同,本公开的系统利用Al 2(OH)5 Cl与H 2 O 2的组合,氧化剂而不是具有酸或具有潜在酸性或路易斯酸性质的盐 。
Abstract:
Salts of 1,3,5-triaza-7-phosphaadamantane can be utilized as catalysts for finishing cellulose-containing textile materials with methylol amide crosslinking agents to give products with improved wrinkle resistance and durable press properties. Inorganic, organic, and sulfonic acid salts, and mixed salt complexes of this new tricyclic phosphorus-containing compound provide effective catalysis in the chemical reactions needed for these finishing treatments. Salts of the corresponding phosphorus oxide, 1,3,5-triaza-7-phosphaadamantane-7-oxide, provided even stronger catalysis in similar treatments.
Abstract:
Improvement in the strength of fabric finished for durable press properties with an N-methylol amide cross-linking agent and sulfuric acid catalyst is obtained by inclusion of magnesium sulfate in the finishing formulation.
Abstract:
The invention provides a cellulose-dyeing dyestuff having the formula ##EQU1## wherein Z is the chromophoric radical of a cellulose-dyeing dyestuff containing a vinyl sulfone group (--CH.sub.2 CH.sub.2 SO.sub.2 --), e.g. Cl Reactive Violet 4 and Cl Reactive Black 5; B is --CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH.sub.2 --, or ##EQU2## A is --O-- or --S--; and X is --H, --CH.sub.2 OH, --CH.sub.2 OCH.sub.3, or ##EQU3## which dyestuff will dye a cellulosic material by heating in the presence of an acid catalyst. The cellulose-dyeing dyestuff of the invention is prepared by reacting a conventional cellulose-dyeing dyestuff having a chromophoric radical containing the aforesaid vinyl sulfone groups (e.g., Cl Reactive Black 5 and Cl Reactive Violet 4) with a hydroxy carbamate, and methylolating the resulting product. The utility of conventional cellulose-dyeing dyestuffs, which are normally reactive with cellulosic materials under alkaline conditions, is greatly extended by converting them to the methylolated derivatives of the invention, through prolonged shelf life and compatibility with selected acidic catalysts.
Abstract:
In mild cure finishing, strong catalysts are required because of the modest curing conditions employed in the process. Suitable catalysts for mild cure finishing include strong inorganic acids, strong organic acids, active inorganic complexes, salt/acid combinations, and salts that are strong Lewis acids (i.e, certain metal salts). Ammonium salts of inorganic acids, although often used in other types of treatments for producing wrinkle resistant textiles, are not satisfactory catalysts for mild cure finishing. Unexpectedly and surprisingly, it has been discovered that ammonium salts of certain, but not all, sulfonic acids can serve as effective catalysts for mild cure finishing of cellulose-containing fabrics to produce wrinkle resistance and durable press properties. Among ammonium sulfonates which provide the catalysis needed for mild cure finishing are ammonium methanesulfonate, ammonium carboxymethanesulfonate (NH.sub.4 O.sub.3 SCH.sub.2 COOH), ammonium benzenesulfonate, and ammonium p-toluenesulfonate.
Abstract:
A unique process for producing torque-free or balanced yarns of staple fibers with glass filament cores is disclosed. Staple fiber roving is fed through a drafting system. Glass filament is fed into the center of the staple fiber just prior to entering the front rolls of the drafting system. Sufficient twist is applied to the fiber around the glass filament using the ring spinning process and two or more of these yarns are ply twisted in the opposite direction of the spinning direction to firmly lock the staple fiber to the glass filament. The twist multiplier range for spinning is between 3.0 to 3.5 and for plying is betwen 3.5 and 4.5. Cotton fiber is the principle fiber used with a glass filament core. The resulting yarn can be tied by knotting onto existing loom beam ends when breaks occur during weaving without shearing of the yarns.
Abstract:
Tris(aminomethyl)phosphine oxide and its ternary salts, useful as catalysts for the chemical finishing of cotton, are prepared by the hydrolysis of tris(N-carbalkoxylaminomethyl)-phosphine oxides having the formula (RO.sub.2 CNHCH.sub.2).sub.3 PO with an alkali or alkaline earth in the presence of water, followed optionally by acidification.
Abstract:
Novel ternary salts of tris(aminomethyl)phosphines and their oxides having the formula (R.sub.2 NH.sup.+ CH.sub.2).sub.3 P(O).sub.n 3X.sup.-, wherein R is hydrogen, an alkyl radical having from 1 to 6 carbon atoms or an aryl radical, n is an integer from 0 to 1, and X is a halogen, are prepared by the reaction of a hydrohalic acid, HX, with various nitrogen- and phosphorus-containing compounds including tris(aminomethyl)phosphines and their oxides, tris(N-carbalkoxylaminomethyl)phosphines oxides, and 1,3,5-triaza-7-phosphaadamantane and its 7-oxide.
Abstract:
An aluminum chlorhydroxide-phosphoric acid catalyst system has been devised that is practical for treatments of cellulose-containing textile materials with formaldehyde and formaldehyde-amide adducts under flash curing conditions to produce valuable, improved durable-press properties in the treated textiles.