Post-drawn, melt-blown webs

Details Post-drawn, melt-blown webs Post-drawn, melt-blown webs

1976-01-21

1977-09-13

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including grain, strips, or filamentary elements in...

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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