Nonwoven web material for infusion packaging and method of making same
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United States of America Patent
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Jan 25, 2005
Grant Date -
N/A
app pub date -
Feb 4, 1998
filing date -
Feb 4, 1998
priority date (Note) -
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Abstract
A multi-phase, non-heat seal tea bag web material is provided with a pattern on either the top or bottom phases. The top phase is formed from fibers, such as hardwood, that provide a tighter or more dense fibrous phase than the vegetable fibers used in the base phase. Patterning can be provided during web formation by using a knuckled wire or by applying a fluid jet against the top of the web material. The sifting characteristics of the multi-phase web material are comparable to or better than that exhibited by single phase material.
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