Process for the conversion of cellulose acetate waste fibers into a suitable form for paper production and the resultant paper products

a technology of cellulose acetate and waste fibers, which is applied in the field of process for the conversion of cellulose acetate waste fibers into a suitable form for paper production and the resultant paper products, can solve the problems of limiting the extent of the addition of artificial fibers to paper, increasing the cost of disposal and decreasing landfill space, and undesirable recycling methods

Inactive Publication Date: 2004-10-28
STROUD HERBERT D JR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

0020] According to yet another preferred embodiment of the invention, the paper comprises between about 90 and about 99% by weigh...

Problems solved by technology

Although these filaments can be redissolved and recycled back into an acetate dope filament production process, this recycling method is sometimes undesirable.
However, because of the increasing cost of disposal and decreasing landfill space, cigarette filter tow suppliers and cigarette manufacturers are looking for alternatives to disposal.
However, the amount of cellulose a...

Method used

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  • Process for the conversion of cellulose acetate waste fibers into a suitable form for paper production and the resultant paper products
  • Process for the conversion of cellulose acetate waste fibers into a suitable form for paper production and the resultant paper products
  • Process for the conversion of cellulose acetate waste fibers into a suitable form for paper production and the resultant paper products

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example 1

[0031] Waste cellulose acetate fibers (filter rods) were shredded using a high speed rotary cutter which included a screen retention basket with openings (holes) of 0.375 inch diameter. The fibers produced from the cutting / shredding process contained substantial crimp. The average length of the fibers was approximately 7mm. The fibers had a denier of 3 grams per 9,000 meters.

[0032] Papers containing the mechanically altered plug room waste fibers were produced using lab-scale Canadian Standard Handsheet equipment owned by Herty Foundation located in Savannah, Ga. Batches with a furnish ratio of Hardwood, % Astracel=50% of wood, Softwood, % Albacel=50% of wood were prepared, confricated and papered out. The processed cellulose acetate waste fibers were added to the furnish prior to confrication a various desired levels. Handsheets with the various levels of processed waste cellulose acetate were prepared for physical property comparison. Test results follow:

Table No. 1.

Processed Wast...

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Abstract

A process for producing artificial fibers without significant fiber surface hydrolysis from waste cellulose acetate continuous filament or filter rods which can then be used in the manufacture of specific paper products. Waste cellulose acetate fibers generated during filament manufacture or cigarette manufacture as off quality production is used for rendering the into a form suitable for specific paper manufacture. Paper products which comprise 1-10% of the subject fiber as part of the pulp furnish is also disclosed.

Description

[0001] This application is based on and claims priority from Provisional Application No. 60 / 465,743, filed Apr. 25, 2003.TECHNICAL FIELD AND BACKGROUND OF THE INVENTION[0002] This invention relates to a process for the conversion of cellulose acetate waste fibers into a suitable form for paper production, and resultant paper products.[0003] The majority of cigarettes manufactured today have a filter composed of cellulose acetate fibers. Cigarettes having a cellulose acetate filter are typically prepared by using a continuous length of cellulose acetate fiber to prepare a long filter rod, then cutting the long filter rod into a multiplicity of shore lengths, or plugs, to form individual cigarette filters. The cigarette is then prepared by attaching these filters to an elongate column of tobacco contained in cigarette paper.[0004] The above described process for preparation of cigarettes results in three waste streams of cellulose acetate fiber. The first waste stream results from the...

Claims

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Application Information

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IPC IPC(8): D21B1/12D21H13/06
CPCD21B1/12D21H13/06
Inventor STROUD, HERBERT D. JR.MITCHELL, MELVIN G.
Owner STROUD HERBERT D JR
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