초록 ▼

Described is a printable microporous material exhibiting enhanced readability of one or more images, e.g., printed indicia, patterns, and designs, applied thereupon. The printable microporous material of the present invention comprises: a matrix of substantially water-insoluble thermoplastic organic

Described is a printable microporous material exhibiting enhanced readability of one or more images, e.g., printed indicia, patterns, and designs, applied thereupon. The printable microporous material of the present invention comprises: a matrix of substantially water-insoluble thermoplastic organic polymer, e.g., ultrahigh molecular weight polyethylene, finely divided, substantially water-insoluble non-color producing particulate filler, e.g., precipitated silica, a network of interconnecting pores communicating substantially throughout the material, and an amount of blue colorant sufficient to improve the readability of printing, e.g., two-dimensional bar codes, present thereon.

대표청구항 ▼

[ We claim:] [1.] In a printable microporous material having at least one printable surface, said microporous material comprising:(a) a matrix of substantially water-insoluble thermoplastic organic polymer comprising essentially linear ultrahigh molecular weight polyolefin;(b) finely divided, substa

[ We claim:] [1.] In a printable microporous material having at least one printable surface, said microporous material comprising:(a) a matrix of substantially water-insoluble thermoplastic organic polymer comprising essentially linear ultrahigh molecular weight polyolefin;(b) finely divided, substantially water-insoluble, substantially non-color producing particulate filler comprising at least 50 percent by weight of siliceous particles, said filler being distributed throughout said matrix and constituting from 40 to 90 percent by weight, based on the total weight of said microporous material; and(c) a network of interconnecting pores communicating substantially throughout said microporous material; improvement wherein said matrix includes blue colorant present in an amount sufficient to improve the readability of a printed image present on at least a portion of said printable surface of said microporous material.[ D 1238-86 Condition E melt index of less than 50 grams/10 minutes and an A][ D 1238-86 Condition F melt index of at least 0.1 grams/10 minutes.][ D 1238-86 Condition E melt index of less than 50 grams/10 minutes and an A][ D 1238-86 Condition F melt index of at least 0.1 grams/10 minutes, said substantially linear ultrahigh molecular weight polyethylene constituting at least one percent by weight of said matrix, and said substantially linear ultrahigh molecular weight polyethylene and said lower molecular weight polyethylene together constituting substantially 100 percent by weight of the polymer of the matrix;]