Floss yarn bulking assembly and method

D - Textiles – Paper – 06 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

D06B 3/12 (2006.01) A61C 15/04 (2006.01) D02G 3/24 (2006.01) D02G 3/40 (2006.01) D02J 1/22 (2006.01) D06M 23/10 (2006.01) F26B 13/00 (2006.01)

Patent

CA 2190735

A process for manufacturing a continuous dental floss blush comprising alternating portions of thread sections which do not stretch significantly under tension and brush sections which stretch under slight tension, including the step of coating at least the thread sections of a reverse twisted high tenacity nylon yarn (10) with a solution of polymer in a volatile solvent, the polymer being nylon, polyurethane or mixtures thereof. The thread sections of the yarn (10) are thereafter heated to vaporize solvent therefrom while the yarn (10) is maintained under a tension of 0.15 to 1 N. In the humidifier assembly (18) having a housing which defines a humidifier zone (20) the brush sections of the yarn (10) are exposed to a mixture of steam and gas while the yarn (10) is under tension. Finally, the brush sections of the yarn (10) are heated to remove solvent and passed through the humidifier zone (20) under controlled tension.

L'invention concerne un procédé pour fabriquer un fil dentaire continu faisant brosse et comportant des portions alternées de sections de filé qui ne s'étirent pas notablement sous tension, et des sections faisant brosse qui s'étirent sous faible tension. Ce procédé consiste à revêtir au moins les sections de filé d'un fil nylon haute tenacité à torsion en S (10) avec une solution de polymère dans un solvant volatil, ce polymère étant du nylon, du polyuréthanne ou des mélanges de ceux-ci. Les sections de filé du fil (10) sont ensuite chauffées pour en vaporiser le solvant tandis que le fil (10) est maintenu sous une tension de 0,1 à 1 N. Dans l'ensemble humidificateur (18) comportant une enceinte définissant une zone d'humidification (20), les sections de filé du fil (10) sont exposées à un mélange de vapeur et de gaz tandis que le fil (10) est sous tension. La dernière étape consiste à chauffer les sections faisant brosse du fil (10) pour en éliminer le solvant et à les faire passer par la zone d'humidification (20) sous tension contrôlée.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Floss yarn bulking assembly and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Floss yarn bulking assembly and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Floss yarn bulking assembly and method will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1573478

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.