Abstract: The invention relates to a process for bleaching washed textiles in the tumbler of a mechanical laundry drier with an aqueous solution of hydrogen peroxide in an amount such that the residual moisture adhering to the textile material before drying contains 0.05 to 1 gm/liter of hydrogen peroxide, the drying being conducted so that the moist textile material assumes a temperature of at least 50.degree. C., preferably 55.degree. C. to 80.degree. C., for a period of at least 10 to 60 minutes. An addition of quaternary ammonium salts improves the bleach result and the softness of the textile material. An addition of a powdered bleaching activator of the N-acyl type also improves the bleach results.

Abstract: A process of bleaching cotton fabrics, especially in relation with household laundry, is provided by adsorbing on the fabric sulfonated zinc phthalocyanine photoactivator followed by rinsing and drying of the fabrics in the presence of visible light and oxygen.

Abstract: Granular peroxygen bleaching and laundering compositions containing a percarbonate as a source of available oxygen are stabilized by the addition of from 0.1 to 2.0 percent of a particulate siliceous matter such as amorphous silica. To prevent caking and promote flowability of the compositions, from 0.05 to 1.0 percent corn starch, diethyl phthalate or mixtures thereof is included.

Abstract: A process for the activation of peroxide-based bleaches comprising conjointly incorporating into an aqueous medium a peroxide-based bleach, sufficient buffering agent to maintain the aqueous medium under alkaline conditions, and a cyanoamine of the general formula ##STR1## as a peroxide activator. Stable peroxide-based bleaching and detergent compositions are also disclosed.

Abstract: Process and composition for selectively bleaching a polarizer, and particularly a polarizer used in a liquid crystal display, to achieve sharply-defined polarizing areas in accurate registration with the transparent conductive areas of the display. This is achieved by silk-screening a gel, containing a bleaching agent, onto selected areas of a polarizer in place of the display, the gel having a viscosity to permit silk-screening.

Abstract: A process for bleaching textiles which comprises treating stained textiles in an aqueous bath containing at least one water-soluble aluminium phthalocyanine, under irradiation with light and in the presence of oxygen, while either irradiating the bleaching bath direct or subsequently irradiating the moist textiles outside the bath, as well as water-soluble aluminium phthalocyanines containing detergent compositions are described.

Abstract: A process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath containing as a peroxygen activator an acylphosphonate.Also described are dry blend compositions containing the bleach bath components.

Abstract: A process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath containing as a peroxygen activator a sulfonyl oxime.Also described are dry blend compositions containing the bleach bath components.

Abstract: A process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath containing as a peroxygen activator an oxybis(diacyloxyborane) of the formula: ##STR1## wherein the acyloxy is derived from a carboxylic acid selected from the class consisting of saturated aliphatic carboxylic acids of 1 to 18 carbon atoms and aromatic carboxylic acids of the benzene and naphthalene series. Also described are dry blend compositions containing the bleach bath components.

Abstract: Novel percompound activators having the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 are the same or different and are hydrogen or certain substituted or unsubstituted straight or branched chain alkyl radicals, cycloalkyl radicals, or hydrocarbon radicals containing at least one aromatic ring, or R.sub.5 and/or R.sub.6 are COR.sub.7, where R.sub.7 is hydrogen or certain substituted or unsubstituted straight or branched chain alkyl radicals or hydrocarbon radicals containing at least one aromatic ring, the activators producing more rapid bleaching or oxidation at a given temperature or the same bleaching effect at a lower temperature and being useful for bleaching textile fibers, oils, fats, and waxes; hair and skin treatment; metal surface passivation; or purifying, sterilizing and disinfecting techniques.

Abstract: A bleaching composition comprising 50 to 99.9 wt.% of an inorganic peroxide and 0.01 to 10 wt.% of a compound having the formula: ##STR1## wherein R.sub.1 is hydrogen or alkyl having 1 to 3 carbon atoms, ##STR2## is a radical of a 5 member or 6 member heterocyclic ring system containing only nitrogen and carbon, or nitrogen, oxygen and carbon, atoms in the ring, which can be fused to a benzene ring or another heterocyclic ring to give a polycyclic radical, R.sub.2 is hydrogen or substituted or unsubstituted alkyl having 1 to 10 carbon atoms, substituted or unsubstituted phenyl, pyridyl or pyrrolidone group, R.sub.3 is hydrogen, substituted or unsubstituted alkyl, phenyl, alkoxy, phenoxy, amino, acyloxy, carbamoyl or acyl group or halogen, or R.sub.3 may form together with R.sub.4 a benzo radical, and R.sub.4 is hydrogen or a monovalent group --R.sub.5 Y in which R.sub.

Abstract: A coated peroxygen compound having improved storage stability, said peroxygen being coated with about 0.1 to about 3.0 weight percent of a polyethylene glycol product having an average molecular weight greater than about 200.

Abstract: A wood pulp slurry, at a consistency of 0.1% to 10% by weight and having a pH ranging from 1 to 7, is bleached with ozone in the presence of 0.1% to 1.0% by weight of a cationic surfactant.

Abstract: A process for the treatment of warp yarns as a row of substantially parallel threads, wherein said yarns are impregnated with excess treating liquor, said excess is removed from the yarns and the treated yarns are finally dried and wound up on a loom beam, the improvement of bringing the linear thread density of the yarns, at least in the excess liquor removal zone, to a value of 2 or higher, said value being the same over the entire width of said yarn row, and reducing said yarn density to the nominal thread count for weaving before said yarns are wound up on at least one loom beam.

Abstract: The present invention concerns a dyeing process with acid dyes for fibrous materials having basic functions, characterized in that amines are used which form salts or complexes with the dyes and have the general formula: ##STR1## wherein: R.sub.1, R.sub.2 and R.sub.3 are aliphatic hydrocarbon radicals, saturated or unsaturated, and having a linear or branched chain;R is either hydrogen or an aliphatic hydrocarbon radical, with either a linear or branched chain, saturated or unsaturated, on the general condition that the sum of the carbon atoms of the radicals R.sub.1, R.sub.2, R.sub.3 and R be a whole number between 11 and 29.

Abstract: The method of activating aqueous solutions of percompounds utilizing N-acylated uracils and benzouracils as activators; solid activated compositions comprising solid percompounds and N-acylated uracils and benzouracils as activators; and novel diacylated uracils and benzouracils.

Abstract: Efficient lignin removal from cellulosic pulp with decreased cellulose degradation is attained by replacing chlorine with an acidic bromine-chlorine mixture in acidic chlorination of the pulp.

Abstract: An unbuilt liquid detergent composition containing sulfonated zinc phthalocyanine as a bleach photoactivator is provided for removing stains from textiles. A process for removing stains from textiles by treating the textiles with an aqueous solution of the unbuilt detergent compositions of this invention in the presence of visible light and oxygen is provided. Preferred compositions contain a high proportion of zinc phthalocyanine tri and tetra sulfonates in the bleach photoactivator component.

Abstract: A process for washing or bleaching textiles in which "dye transfer" is inhibited by the use of an oxidizing bleaching agent together with a catalytic compound, such as iron phorphins, haemin chloride or iron phthalocyanines. Compositions for use in this washing or bleaching process are also taught.

Abstract: Detergent compositions containing particular species of sulfonated zinc phthalocyanine were found to be unexpectedly effective bleach photoactivators for removing stains from textiles. These species are principally tri- and tetra-sulfonates, especially the latter, with minor amounts of di-sulfonates permitted.

Abstract: Sodium percarbonate is stabilized by a metal chelating agent which will produce a chelate compound insoluble or slightly soluble in water. Such metal chelating agent is dispersed in the reaction mixture with the aid of a surface active agent when sodium carbonate and hydrogen peroxide are reached and the crystals of sodium percarbonate are separated out.

Abstract: Preparation of stable solutions of aluminum hydride in liquid hydrocarbons such as benzene or toluene by a one-step reaction between, for instance, 1 mole of aluminum chloride with 3 moles of lithium hydride in said liquid hydrocarbon medium and in the presence of a weak ether base such as dimethyl ether, an aliphatic tertiary amine such as trimethylamine being added.

Abstract: A method of bleaching cotton is described herein which comprises contacting said cotton with a bleaching solution of chlorine monoxide in an inert liquid solvent (e.g. methyl chloroform). Bleaching occurs very rapidly by this method and the cotton fibers undergo very little if any degradation.

Abstract: A first portion of bleaching liquid is passed through cellulosic pulp in a bleaching zone at a first level with respect to the pulp feed direction and withdrawn through transversely spaced strainer means located at about said first level so that the passage of the first portion of bleaching liquid through the pulp is in a direction transverse to the feed direction of the pulp and a second portion of bleaching liquid is passed through said cellulosic pulp at a second level with respect to the pulp feed direction and withdrawn through transversely spaced strainer means located at about the second level so that the passage of the second portion of bleaching liquid through the pulp is in a direction transverse to the feed direction of the pulp and opposite from the transverse direction through said first level.