摘要:
The present invention provides a highly functional polyethylene fiber exhibiting reduction of change in their physical properties in a wide range of temperatures for processing for products and in a wide range of temperatures for usage as products, thereby enabling improvement of dimensional stability. In addition, the present invention provides a highly functional polyethylene fiber exhibiting a high degree of dye exhaustion to be obtained in a simple dyeing operation, and excellent color fastness. The highly functional polyethylene fiber of the present invention is characterized in that an intrinsic viscosity [η] is higher than or equal to 0.8 dL/g, and not higher than 4.9 dL/g, ethylene is substantially contained as a repeating unit thereof, and a maximum thermal shrinkage stress is less than or equal to 0.4 cN/dtex in TMA (thermo-mechanical analysis), and a thermal shrinking percentage at 100° C. is less than or equal to 2.5%.
摘要:
Colouring process of Polypropylene/polystyrene support, in which the support is coloured by means of an aqueous composition comprising from 0.1 to 4% by weight disperse dye, organic acid with 1 to 6 carbon atoms, and at least a surfactant, whereby said colouring is operated partly at a temperature higher than 90° C.
摘要:
Polyolefin fibers and filaments, and fabrics made therefrom, are rendered dyeable via a combination of dyeability additives. The dyeability additive combination comprises at least one compound selected from the group consisting of the polyamides, copolyamides and polyetherpolyamides and at least one ethylene vinyl acetate. The dyed polyolefin fibers and fabrics are rendered light stable via the use of a combination of stabilizers, which comprises at least one compound selected from the group consisting of the ultraviolet light stabilizers and at least one compound selected from the group consisting of the hindered amine light stabilizers. The ultraviolet light stabilizers are for example hydroxyphenylbenzotriazoles or tris-aryl-s-triazines. The hindered amine light stabilizers are for example of high molecular weight, for instance greater than 1000 g/mol. The dyes are for example anthraquinone blue dyes, anthraquinone red dyes, diazo red dyes or nitro yellow dyes.
摘要:
Fibers, or articles prepared therefrom, of linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon are effectively dyed by contacting the fibers in aqueous dyebath under mild dyeing conditions in the substantial absence of a dye carrier. The dyed materials are useful in apparel fabrics.
摘要:
A predominantly polyester fabric has a multi-colored pattern. The fabric includes at least one non-aromatic, partially crystalline polymethylolefin yarn melting above about 180.degree. as less than 50%, by weight, of the fabric, and polyester yarn. The polymethylpentene yarn and the polyester yarn are fabricated in a predetermined pattern and then piece dyed with disperse dye techniques.
摘要:
A DIFFICULT DYEABLE MATERIAL OR FABRIC IS RENDERED READILY DYEABLE BY CAUSING ADHERENCE TO THE SAME OF A DYEABLE POWDER, FOR EXAMPLE, BY FUSING THE POWDER TO THE SURFACE OF THE MATERIAL OR FABRIC BY HEAT AND/OR PRESSURE. IN ONE EMBODIMENT A CARPET BACKING MADE OF NONWOVEN POLYPROPYLENE IS RENDERED DYEABLE BY DEPOSITING A DYE RECEPTIVE POLYESTER OR POLYAIDE OR OTHER MATERIAL ON ONE OR BOTH SIDES OF THE FABRIC AND FUSING THE POWDER TO THE SURFACE AS HEREIN DESCRIBED.
摘要:
A process for acid dyeing polyolefin (isotactic polypropylene) shaped articles such as fibers is provided which gives full penetration of dye to heavy denier round fibers in relatively short periods of time as well as adequate penetration of very heavy tape and fibrillated film fibers. This process comprises (1) extruding a uniform blend of the polyolefin with about 2 to 15 percent by weight of a thermoplastic, essentially compatible nitrogen-containing polymer such as a copolymer of ethylene and dimethylaminoethyl methacrylate into fibers, (2) exposing the fibers to an aqueous prescour solution which contains about 3 to 200 percent, on weight of fiber, of various scour materials, preferably sodium bisulfate, and optionally a non-ionic surfactant, at a temperature of about 80* to 1290* C., and (3) exposing the fibers to an acid dye bath, containing an acid dye, a premetallized dye, a disperse dye or mixtures thereof.