Nonwoven fabrics for printing

Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond

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Details

428284, 428285, 428286, 428287, 428289, 428290, 430138, 524195, 524714, B05D 500, B05D 312

Patent

active

052407675

ABSTRACT:
A nonwoven fabric, particularly composed by long-stock synthetic resin yarns such as polyethylene and polypropylene is provided at one or both surfaces thereof with an ink-setting layer formed by coating, drying and curing a resin composition containing some of acrylic resins, synthetic rubbers and polyester resins. The ink-setting layer is excellent in the transfer property and fixing ability to an oil ink which is ordinarily used for offset printing, and prevents the nonwoven fabric from being swelled or transformed by a petroleum high-boiling-point solvent contained in the oil ink. Preferably, a low-temperature cross-linking agent is incorporated with the resin composition of the ink-setting layer so as to complete cross-linking of the resin composition at a low temperature at which heat shrinkage or heat damage of the nonwoven fabric will not be caused, in a shortened period of time. Moreover, when 10 to 40% by weight of non-calcined clay, 1 to 15% by weight of titanium dioxide and 1 to 10% by weight of calcium carbonate or calcined clay are incorporated as fillers in the resin composition of the ink-setting layer, the ink-setting layer has improved absorbability, drying ability and fixing ability to a printing ink. A preferable construction of the nonwoven fabric has a first layer containing the low-temperature cross-linking agent and a second layer containing the specific filler ingredients.

REFERENCES:
patent: 3377194 (1968-04-01), Smith et al.
patent: 4359238 (1982-11-01), Tsubusaki et al.
patent: 4501809 (1985-02-01), Hiraishi et al.
patent: 4803115 (1989-02-01), Fushiki et al.
patent: 4943612 (1990-07-01), Morita et al.
patent: 5061546 (1991-10-01), Groshens et al.

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