Patent ID: 6872674

Claim:
A non-woven web or composite structure comprising: (a) from about 50 to about 90 weight percent of a natural cellulose fiber; (b) from about 10 to about 50 weight percent of a binder fiber component comprising: (1) from about 50 to about 99 weight percent of a cellulose ester fiber comprising: (i) from about 63 to 100 weight percent cellulose ester, and (ii) from 0 to about 37 weight percent plasticizer; and (2) from about 1 to about 50 weight percent of an aliphatic-aromatic copolyester fiber comprising: (iii) a glycol component comprising from about 90 to 100 mole percent 1,4-butanediol and 0 to about 10 mole percent of a modifying glycol wherein the total mole percentages of glycol equal 100 mole percent; and (iv) a diacid component comprising from about 40 to about 60 mole percent terephthalic acid and from about 60 to about 40 mole percent adipic acid wherein the total mole percentages of dicarboxylic acid equal 100 mole percent; (c) from 0 to about 20 weight percent of a filler; and (d) from 0 to about 8 weight percent of a dye or pigment, wherein the weight percentages of components (a)-(d) are based on the total weight of said non-woven web or said composite structure.