Post-drawn, melt-blown webs

Stock material or miscellaneous articles – Structurally defined web or sheet – Including grain – strips – or filamentary elements in...

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Details

156244, 428198, 428288, 428296, 428903, 428910, B32B 714

Patent

active

040483649

ABSTRACT:
A novel nonwoven article useful as a scrim support for other materials, such as paper toweling and wiping cloths, or as porous, nonadsorbent coverings for adsorbent packaging such as bandages or sanitary napkins, or a ribbon for packaging and decorative applications, is produced by post drawing certain melt-blown thermoplastic mats under defined conditions of draw ratios and temperatures. A moderate strength yarn or twine can be produced by twisting the post-drawn, melt-blown thermoplastic web.

REFERENCES:
patent: 3704198 (1972-11-01), Prentice
patent: 3715251 (1973-02-01), Prentice
patent: 3795571 (1974-03-01), Prentice

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