摘要:
A process for bulk dyeing of plastics comprising the step of adding a dye of the formula (I) 1 wherein Y is a bivalent radical selected from the group consisting of substituted and unsubstituted arylenes and alkylenes, and substituted and unsubstituted alkylene radicals interrupted in the main chain by heteroatoms such as O or S, R1 and R1null, independently of one another, are an electron-withdrawing group, R2, R2null, R3 and R3null, independently of one another are hydrogen, alkyl, R4 and R4null, independently of one another, are unsubstituted or substituted alkyl. to plastic.
摘要:
A method for printing a dye sublimation ink decoration on a surface of a type which is generally incompatible with dye sublimation direct image transfer. The method includes the steps of applying a coating receptive to dye sublimation ink printing to one surface of a release sheet. Applying an adhesive to the exposed surface of the coating. Removing the release sheet from the coating and printing a decoration on the coating using a sublimation heat transfer printing process. Positioning the adhesive against the surface which is to receive the direct image transfer to adhere and support the coating and the release sheet on the surface. In a further embodiment of the invention, a bonding enhancing layer is applied to the dye sublimation ink printing receptive coating, an embossable polyester layer is applied to the bonding enhancing layer, a hologram is applied to the embossable polyester layer and a high refractive index layer is applied to the hologram embossable layer all before the adhesive is positioned against the direct image receiving surface and is adhered thereto.
摘要:
The present application relates to a process for preparing dyed plastics or polymeric dye particles characterized in that it comprises mixing a high molecular weight organic material with a coloristically effective amount of at least one dye of the formula where R1 is hydrogen, hydroxyl or a radical nullNHCOnullR6, where R6 is C1-C6alkyl or unsubstituted or C1-C4alkyl- or halogen-substituted phenyl, R2 is hydrogen, hydroxyl or a radical WnullR7, where W is nullNHCOnull or nullSnull and R7 is C1-C6alkyl or unsubstituted or C1-C4alkyl- or halogen-substituted phenyl, R3 is hydrogen, R4 is hydrogen or hydroxyl, R5 is hydrogen, or R3 and R4 combine to form the radical of the formula, where the rings A and B may independently bear further substituents.
摘要:
The invention relates to the use of compounds of the formula 1 in which R1, R2, R3 and R4 independently of one another are hydrogen, halogen, R6, OR6 or SR6, R5 is hydrogen or linear or branched C1-C12alkyl, benzyl or phenethyl, and R6 is an apolar group which is unsubstituted or substituted one or more times by halogen or by OC1-C6alkyl, with the proviso that if R5 is hydrogen, R1, R2, R3 or R4 is R6, OR6 or SR6, as additives in the pigmentation of partially crystalline plastics, especially those processed by injection moulding, with pigments containing at least one each of groups 2 which are joined to one another as 3 or are in conjugation with one another. Preferred pigments are quinacridone pigments, disazo condensation pigments, isoindolinone pigments and pyrrolonull3,4-cnullpyrrole pigments, especially pyrrolonull3,4cnullpyrrole pigments. Corresponding formulations and novel compounds are likewise claimed. By these means it is possible to avoid warping.
摘要:
A method for forming a dye sublimation image in a substrate with a dye carrier having an image formed thereon of a sublimatic dyestuff is provided. The image of the dye carrier is placed against a first surface of the substrate. The substrate and dye carrier are conveyed along a path with a first part and a second part. A continuous pressure is provided against the first surface of the substrate in the first part and second part of the path and therebetween. The dye carrier is heated to a sublimation temperature in the first part of the path. The dye carrier is then cooled to a depressure temperature in the second part of the path.
摘要:
The present invention relates to textile spun-dyed fiber material comprising synthetic fibers or mixtures of cellulosic and synthetic fibers for producing military camouflage articles, wherein the synthetic fiber fraction is spun-dyed with a dye having a chlorophyll-like reflectance in the IR region, and to its use for producing military camouflage print articles.
摘要:
A process for tinting of articles molded from a polymeric resin is disclosed. Preferably, the article is molded from polycarbonate and the process entails immersing the molded article in a dye bath that contains water, dye, a carrier and an optional surfactant. The carrier is a compound conforming to R1nullnullOnull(CH2)nnullmOR2nullnull(i) wherein R1 and R2 independently denote H or C1-18 alkyl, benzyl, benzoyl or phenyl radical which may be substituted in the aromatic ring by alkyl and or halogen, preferably R1nullbutyl, R2nullH, n is 2 or 3 and m is 2 to 35. The method is especially useful in the manufacture of tinted lenses.
摘要:
A dye, such as a fluorescent dye, is incorporated into polymer microparticles using a solvent system composed of a first solvent in which the dye and the microparticle polymer are soluble, a second solvent in which the dye and the microparticle polymer are not or only weakly soluble, and a third solvent in which the dye and the microparticle polymer are not or only weakly soluble. The first and second solvents are immiscible with each other, or at most partially miscible. The third solvent is miscible with the first and second solvents. The formulation provides substantially complete partitioning of the dye to the microparticles. The method may be used to obtain dyed polymer microparticle formed of cross-linked or non-cross-linked polymers. Libraries are provided comprising two or more sets of microparticles of different dye loadings. Fluorescent core-shell microparticles are produced from a mixture of microparticle cores incorporating one or more fluorescent dyes, a polymerization mixture comprising at least one polymerizable shell monomer, at least one free radical polymerization initiator comprising a water-insoluble oxidizing agent, and at least one water-soluble reducing agent.
摘要:
The invention relates to new methods of dyeing polymers. The methods include dispersing nanomaterials into the polymers to form polymer nanocomposites, and dyeing the polymer nanocomposites with a dye. The invention also relates to dyed polymers thus obtained and articles made from these dyed polymers.
摘要:
The invention provides a colorant for use in tinting contact lenses in which the binding polymer used is capable of forming an interpenetrating polymer network with the lens material. When the colorants of the invention are applied to uncured lens material that is subsequently cured, the binding polymer forms an interpenetrating polymer network with the lens material embedding the colorant within the lens material resulting in a stable, tinted lens.