Abstract:
Process for the continuous one-bath dyeing of pile fabrics made of acrylic fibres in the pile with a cotton base fabric by the pad-steam process with basic and substantive dyestuffs, characterized in that salts of alkyl sulphates of the general formulaR--O--SO.sub.3.sup..crclbar. M.sup..sym.in whichR represents a straight-chain or branched alkyl radical with 10-16 carbon atoms andM represents an alkali metal, alkaline earth metal, ammonium, alkylammonium or alkanolammonium ion,are used as auxiliaries in the dyebath.
Abstract:
A woven fabric is made of warp threads and weft threads. The warp threads have a different composition than the weft threads and at least one of the warp threads or weft threads is comprised of a multifilament fibre. The fabric is colored after it is manufactured by preferentially coloring the warp threads with a dyestuff which is preferentially taken up by the warp threads, but substantially repelled by the weft threads, and a different dyestuff which is preferentially taken up by the weft threads and substantially repelled by the warp threads. The resulting fabric can exhibit the shot silk effect.
Abstract:
In the printing of fiber assemblages containing acrylic fibers dyeable with cationic dyes and blend fibers dyeable with anionic dyes, there is disclosed a process for printing with a printing paste containing a cationic and a anionic dye which comprises preparing the printing paste so as to contain specific amounts of lignin sulfonic acid or a soluble salt thereof, printing the fiber assemblage with said paste, and thereafter steaming the printed assemblage to fix the dyes thereon.
Abstract:
1. AN IMPROVED DYESTUFF SOLUTION SUITABLE FOR THE ENHANCED DYEING OF ACYLIC AND MIXED ACYLIC FIBERS AND FABRICS, SAID SOLUTION CONSISTING ESSENTIALLY OF: (A) A WATER:SOLUBLE COMPLEX OF A CATIONIC DYE WITH A LINEAR ALKYLARYLSULFONIC ACID SURFACE ACTIVE AGENT SAID SURFACE ACTIVE AGENT BEING PRESENT IN EXCESS OF THE STIOCHIOMETRIC AMOUNT FOR SAID COMPLEX; 8B) A LOWER ALCOHOLIC SOLVENT PRESENT IN AN AMOUNT WITHIN THE RANGE OF FROM ABOUT 5% TO ABOUT 25% BY WEIGHT BASED ON THE TOTAL WEIGHT OF SAID COMPLEX AND SAID ALCOHOLIC SOLVENT; (D) AN ALKALIZING AGENT PRESENT IN AN AMOUNT SUFFICIENT HAVING 1 TO 3 CARBON ATOMS, SAID CHLORINATED HYDROCARBON SOLVENT BEING PRESENT IN AN AMOUNT SUCH THAT THE DYESTUFF SOLUTION CONTAINS FROM ABOUT 0.1 TO ABOUT 20 PARTS BY WEIGHT OF SAID COMPLEX PER 100 PER PARTS OF SAID HYDROCARBON SOLVENT; (D) AN ALKALIZING AGENT PRESENT IN AN AMOUNT SUFFICIENT TO SSURE THAT THE PH OF SAID DYESTUFF SOLUTION IS FROM ABOUT 2 TO ABOUT 7.5; AND (E) WATER PRESENT IN AN AMOUNT SUFFICIENT TO FORM A CLEAR, STABLE SOLUTION OF THE COMPLEX IN SAID SOLUTIO CONTAINING SAID CHLORINATED HYDROCARBON SOLVENT AND SAID LOWER ALCOHOLIC SOLVENT, WHEREBY THE RESULTING CLEAR, STABLE DYESTUFF SOLUTION IS CAPABLE OF PRODUCING A GREATER DEGREE OF BRIGHTNESS THAN CONVENTIONAL AQUEOUS DYESTUFF SOLUTIONS, THE SHORT DYEING TIME ACQUIRED WITH SAID DYESTUFF SOLUTIONS, THE SHORT DYEING AGE TO THE FIBER BEING DYED AND PERMITTING INCREASED DYED FIBER PRODUCTION.
Abstract:
A fabric for use in safety apparel comprising yarns spun from a blend of staple fibers. At least 60 percent of the staple fibers are flame resistant fibers and up to 40 percent are non-flame resistant fibers. At least one dye type is applied to the fabric and is selected to dye both the flame resistant and non-flame resistant fibers in the blend. When dyed, the fabric meets both the American National Standards Institute standard ANSI/ISEA-107 minimum conspicuity requirements for occupational activities for high-visibility safety apparel and the American Society for Testing and Materials standard ASTM F-1506 for flame resistance.
Abstract:
A mixed fabric of hydroxy group-containing fibers and cyano and/or carboxy group-containing fibers, the hydroxy group-containing fibers having been dyed with a reactive dye, is aftertreated with a product of reacting a mono- or polyfunctional amine having one or more primary, secondary and/or tertiary amino groups with cyanamide, dicyandiamide guanidine or bis-guanidine, said product containing at least one reactive hydrogen atom linked to a nitrogen atom, and is then dyed with a basic dye.
Abstract:
Textile fabrics containing blends of synthetic fibers and cellulosic fibers are dyed in a continuous process such that the fibers of each class are substantially colored and a union dyeing is obtained. The method comprises continuously impregnating the fabric with a dyebath composition comprising a premetallized dyestuff and a reactive resin. After impregnation, the fabric is subjected to a temperature of from 280.degree. to 400.degree. F. to dry the fabric and to cure the dyebath composition on the fabric.
Abstract:
The present invention relates to a process for dyeing cellulose fibers or its union fibers which is effected according to an exhaustion dyeing method using a reactive dye containing at least one s-triazinyl group having a group of the formula: ##STR1## wherein M represents a hydrogen or an alkali metal, in an aqueous dyeing bath having a pH in the range of 4 to 10 and a dyeing temperature in the range of 110.degree. C. to below 140.degree. C.
Abstract:
An azo compound which in the free acid form is represented by the following formula: ##STR1## where R.sub.1 stands for methyl, ethyl, R.sub.2 stands for hydrogen, methyl, methoxy or ethoxy, R.sub.3 stands for hydrogen or methyl, and K stands for ##STR2## wherein the benzene nucleus A may be further substituted by methyl, amino, acetylamino or methoxy or: ##STR3## wherein these naphthalene neuclei may be further substituted by hydroxy, amino or acetylamino, also a process for preparing the azo compound and a dyeing method using said azo compound.
Abstract:
There is provided a process of dyeing yarn or cloth comprising fibres, comprising dyeing at least part of the fibres with at least two types of dyestuff that dye the same fibres substantially the same colour. One of the types of dyestuff chemically bonds with or is at least partially incorporated into the fibre structure and the other type of dyestuff does not chemically bond with or become at least partially incorporated into the fibre structure.