Acetate International LLC

Celanese Acetate Limited

Christopher M Bundren

William S Sanderson

Michael Combs

Philip Caenen

Paul Busby

Ronald Hughes

Edward J Clark

Christophe Loix

Dirk Amtower

Susan Blankenship

Karen Zazzara

Austin P Banks

Lawton E Kizer

Denis G Fallon

Frank Olaerts

Lixin Xue

William Sanderson

Melissa Tsai

Ronald F Hughes

Disclosed are packaged fibrous material bales and methods for packaging fibrous materials such as cellulose acetate tow bales. The packaged fibrous material bale may comprise a compressed fibrous material enclosed in packaging. The packaging may comprise an upper sheet and a lower sheet comprising a tab. After the residual forces in the packaged bale have equilibrated following pressing, greater than 99% of the surface area of the bale is enclosed by the packaging.

Packaged fibrous material bales comprising lower sheet

Provided herein are cellulose acetate tow bands having less than 0.1 wt. % titanium dioxide, wherein the content of titanium dioxide is measured by ashing and/or by titanium particle count density. Also provided herein is a method of measuring the titanium dioxide content of cellulose acetate tow by ashing. Also provided herein is a method for measuring the color of cellulose acetate tow.

Cellulose acetate tow with high dpf and low titanium dioxide content

Disclosed are cellulose acetate tows, bales, and filter rods having at least 3 denier per filament and at least 50,000 total denier, or at least 6 denier per filament and at least 40,000 total denier, for use as hollow filters, non-wrapped filters, or combinations thereof, in smoking devices and aerosol-generating devices, such as an electrically heated cigarette. The cellulose acetate tow may comprise at least 3-6 denier per filament and may have a total denier of at least 50,000 to 100,000. The cellulose acetate tow comprises at least 6-12 denier per filament and may have a total denier of at least 40,000 to 90,000. The hollow filter may comprise a non-wrapped cellulose acetate hollow filter.

High total denier cellulose acetate tow for hollow filters and non-wrapped filters

Cellulose acetate tow with low DPF and low titanium dioxide content

Disclosed are cellulose acetate tows, bales, and filter rods having from greater than 9 to less than 12.5 denier per filament and from 20,000 to 40,000 total denier, for use in smoking devices, including aerosol-generating devices such as an electrically heated cigarette.

Medium dpf and total denier cellulose acetate tow

A method for forming a filter rod may include providing a bale of crimped tow band having about 10 denier per filament or greater and about 20,000 total denier or less, the crimped tow band comprising a plurality of cellulose acetate filaments; and placing the crimped tow band in an apparatus so as to form a filter rod.

Products of high denier per filament and low total denier tow bands

A spinneret having tri-arc holes may be used to produce tri-arc filaments. In some instances, tri-arc holes have a Y-shape with three prongs and each prong having an arc at the end of the prong that tapers from the end of the arc to a connection point of an adjacent arc, and tri-arc filaments have a generally-Y shape cross-section with bulbous or arcing tips. Further, tri-arc filaments may be useful in a plurality of applications including, but not limited to, filters, filters comprising particulate additives, and smoking device filters.

Process of making tri-arc filaments

A method for baling a cellulose acetate tow is disclosed. The method includes the following steps: laying the cellulose acetate tow into a can; pressing the laid tow with a press having a first platen and a second platen, each platen facing each other, each platen having a contoured face, the contoured face having at least three sloped portions, a first sloped portion located adjacent a peripheral edge of the platen having a first slope, a second sloped portion located adjacent the first sloped portion having a second slope, and a third sloped portion located adjacent the second sloped portion having a third slope, wherein the first slope is greater that the second slope, and the second slope is greater that the third slope; and packaging and securing the pressed tow; whereby the pressed tow having substantially flat surfaces.

Method of making a bale of cellulose acetate tow

Growing community of inventors

Blacksburg, VA, United States of America

Christopher M Bundren