摘要:
A process for producing coated glass yarns which comprises drawing a plurality of fibers formed from strands of molten glass, applying to the strands a sizing coating comprising at least a monounsaturated or polyunsaturated oligomer and a photostarter composition such as a photoinitiator compound, a photosensitizer compound or a mixture thereof and optionally an organic solvent and an additive composition comprising at least one of a wetting agent, an adhesion promoting agent, an antishrinking agent and a coupling agent, gathering the coated strands into a yarn and irradiating the coated yarn with a source of actinic radiation. An apparatus for performing this process comprises a spinneret having a plurality of nozzles or orifices, from which strands of molten glass are discharged, means for drawing a plurality of glass fibers from the spinneret, at least one coating applicator for applying the sizing coating to the glass fibers, guide means for gathering the coated fibers into a yarn and an irradiation enclosure wherein the coating is crosslinked and/or polymerized by the effect of at least two sources of actinic, preferably ultraviolet, radiation.
摘要:
A process is provided which prepares an aqueous polymer emulsion containing an interpenetrating polymer network. This polymer emulsion is useful as a binder, adhesive or coating.
摘要:
A process for the simultaneous dyeing and crease-proof finishing of textile material consisting of cellulose fibers or blends of cellulose fibers and polyester fibers by impregnating the textile material with an aqueous bath containing a reactive or vat dyestuff or a disperse dyestuff and a reactive or vat dyestuff, N-methylol-acrylamide or N,N-dimethylol-methyl-bis-acrylamide or an ether thereof with an alkanol containing 1 to 3 carbon atoms as well as an acid catalyst, dry heating the material to condense the N-methylol group of the synthetic resin and optionally fixing the disperse dyestuff at the same time, and in a second fixation step simultaneously fixing the reactive or vat dyestuff and the ambivalent cross-linking agent in an alkaline medium, and then after-treating the material by washing operations.
摘要:
Disclosed are modified cellulosic fibers comprising the reaction product of linear, water-wettable polysaccharides with N,N'-methylenebisacrylamide and methods of making same. The materials are useful in the preparation of products characterized by their increased bulk and absorbency.
摘要:
A PROCESS AND THE PRODUCT THEREOF WHEREIN EASY CARE OR PERMANENT PRESS CHARACTERISTICS ARE IMPARTED TO SUBSTRATES INCLUDING AT LEAST TEN PERCENT POLYMERIC CELLULOSIC FIBERS BY THE APPLICATION THERETO OF ONE OR MORE SUITABLE UNSATURATED COMPOUNDS EITHER ALONG OR TOGETHER WITH OTHER AMINOPLAST RESINS AND IN THE PRESENCE OF ONE OR MORE SUITABLE CATALYSTS COMPRISING A METAL SALT IN WHICH THE METAL ION IS ALUMINUM, ZINC, ZIRCONYL AND TITANYL AND THE ANION IS OF AN ACID SELECTED FROM HYDROCHLORIC ACID, NITRIC ACID, SULPHURIC ACID, PHOSPHORIC ACIDS AND ORGANIC CARBOXYLIC AND SULFONIC ACIDS HAVING A PK UP TO 6, SAID METAL SALT BEING SOLUBLE IN WATER TO THE EXTEND OF AT LEAST 0.1 PERCENT BY WEIGHT, THE UNSATURATED COMPOUND, HAVING AT LEAST ONE GROUP CAPABLE OF INTERACTING WITH THE HYDROXY GROUPS OF THE POLYMERIC CELLULOSIC FIBERS, CURING AND INTERACTING IN THE PRESENCE OF SAID SUITABLE CATALYST UPON APPLICATION OF SUITABLE THERMAL ENERGY.
摘要:
Cellulosic fabrics are modified in two steps with compounds containing at least one group reactive under conditions of acid catalysis and at least one group reactive under conditions of alkaline catalysis, e.g., N-methylol acrylamides. In conducting the process, either the acid or the alkaline catalyzed reaction may be run first; the fabric may be formed into a garment subsequent to the first reaction but prior to the second reaction and an alkaline catalyst may be used which is substantially neutral on the fabric at ambient temperatures but becomes strongly alkaline at elevated temperatures.
摘要:
A METHOD FOR INHIBITING CROSS-LINKING OF CELLULOSE WHEN N-METHYLOLACRYLAMIDE IS REACTED WITH CELLULOSIC TEXTILE MATERIALS IN THE PRESENCE OF ACID-ACTING CATALYSTS, WHICH COMPRISES THE USE OF POTASSIUM IODIDE WITH OR WITHOUT CUPRIC CHLORIDE. AN AQUEOUS TEXTILE FINISHING COMPOSITION FOR PERMANENT PRESS CELLULOSIC TEXTILES CONTAINING NMETHYLOLACRYLAMIDE, AN ACID-ACTING CATALYST AND POTASSIUM IODIDE, WITH OR WITHOUT CUPRIC CHLORIDE.
摘要:
A non-woven product is prepared in which a fiber or fabric is bound by a binder containing an aqueous copolymer emulsion which contains a first polymer network which is intertwined on a molecular scale with a second polymer network.
摘要:
A process for imparting hydrophilicity to fabric which comprises treating the fabric with a composition comprising a copolymer of an N-(oxymethyl)-acrylamide grafted onto a poly(oxyalkylene) backbone and an acid catalyst to facilitate cross-linking of the graft copolymer on the fabric surface and drying said fabric at a temperature sufficient to cure the graft copolymer.
摘要:
Cellulosic fabrics are rendered less flammable by reaction of acrylamidomethyl cellulose with sodium hypophosphite in the presence of ionizing radiation and then with bromine.