US2381142A - Dental floss - Google Patents

Dental floss Download PDF

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Publication number
US2381142A
US2381142A US43896442A US2381142A US 2381142 A US2381142 A US 2381142A US 43896442 A US43896442 A US 43896442A US 2381142 A US2381142 A US 2381142A
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US
Grant status
Grant
Patent type
Prior art keywords
floss
fibers
vinyl
wax
dental
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
Albert A Stonehill
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johnson and Johnson
Original Assignee
Johnson and Johnson
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/06Processes in which the treating agent is dispersed in a gas, e.g. aerosols
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C15/00Devices for cleaning between the teeth
    • A61C15/04Dental floss; Floss holders not used, see subgroups
    • A61C15/041Dental floss
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/75Processes of uniting two or more fibers

Description

Patented Aug. 7, 1945 DENTAL FLOSS Albert A. StonehlllQBrooklyn, N. Y., assignor to Johnson It Johnson, New Brunswick, N. -.I.. a corporation of New Jersey No Drawing. Application April 14, 1942,.

sol-m No. 438,964

6 Claims.

This invention relates to dental floss or tapes which are now generally made of natural fibers suchassilk.

Natural fibers, however, hav'e' a tendency to shred or fray upon use, which tendency not only lessens their tensile strength but prevents or in-- improved dental floss which does not have the' foregoing disadvantages. I

It has been found that a. dental floss 'm'ade from a strand or filament of synthetic fibers of an unplasticized vinyl resin such as a copolymer of vinyl chloride and vinyl acetate treated with wax has unique properties that unexpectedly cause it to be admirably suited for use as a dental floss.

It has been found that the individual filaments or fibers ofa synthetic thread or filament of an 'unplasticized vinyl resin such as a copolymer of vinyl chloride and vinyl acetate due to their thermoplastic characteristics tend to fuse together wh'en it is run through a wax bath at telnperatures ranging between 65 C. and 100 C. This partial fusion of the individual fibers of the filament produces a smooth slick finished floss that is not only considerably more resistant to fraying and wear than floss froni natural fibers. during use but tends to pass between the teeth more readily than natural fiber floss. This latter property may also be due to its smooth surface and its tendency-to shrink when heated to temperatures in excess of 65 C. and the subsequent elasticity of the filament. The elasticity gained is of distinct advantage in aiding passing or drawing of the synthetic floss between-the teeth. In tight spaces, the slight elasticity of the synthetic floss permits the floss to work its way into the space whereas other fibers not possessing this inh'erent elasticity tend to fray and eventear. 45

verysatisfactory inasmuch as it is slightly above the thermoplastic point of the synthetic filament and the congealing point of wax. Temperatures above 100 C. may cause excessive shrinkage and loss of tensile strength.

So far as is known the wax does not enter into a chemical combination with the synthetic fiber although some of the wax may be entrapped between the individual fibers as they fuse together thus insuring an adequate supply of waxin a usable form in the finished product. In any event the finished product due to its fused and non-raveling or fraying characteristic in combinatiorrwith the wax either entrapped or on the 10 surface results in a floss that is elastic, flexible,

smooth and superior in non-fraying and nonraveling characteristics to silk floss heretofore on the market.

Iclaini: a

1. The method of making a dental floss which comprises the steps of forming a thread of a plurality of synthetic fibers of an unplasticized vinyl resin and partially fusing the flberstogether by passing the thread through a wax bath at a temperature between 65 C. and 100 C.

, 2. The method of making a dental floss which comprises the steps of forming a thread of a plurality of synthetic fibers of a copol'ymer of vinyl chloride'and vinyl acetate and p rtially fusing the fibers together by passing the thread through a wax bath. at a temperature between C. and

, 3. An elastic dental fioss having smooth, slip- 30. Dery surfaces, comprising a plurality of synthetic fibers of unplasticized vinyl resin partially fused I together and bonded and impregnated with an adhering wax, said floss being elastic and resistant to shredding and fraying.

fibers of a copolymer of vinyl chloride. and vinyl acetate partially fused together and bonded and impregnated with an adhering wax.

6. The method of making an elastic dental floss which comprises the steps of forming a thread of a plurality of synthetic fibers of an unplastlcized vinyl resinand partially fusing and bonding the fibers together in contact with an adhering wax at temperatures slightlyabove the fusion point of the'flbers and the melting point of the wax, and below the temperature of any substantial shrinking of the-fibers.

4. Anelastic dental floss having smooth, snp- ALBERT A. S'I'ONEHILLK

US2381142A 1942-04-14 1942-04-14 Dental floss Expired - Lifetime US2381142A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US2381142A US2381142A (en) 1942-04-14 1942-04-14 Dental floss

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2381142A US2381142A (en) 1942-04-14 1942-04-14 Dental floss

Publications (1)

Publication Number Publication Date
US2381142A true US2381142A (en) 1945-08-07

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ID=23742745

Family Applications (1)

Application Number Title Priority Date Filing Date
US2381142A Expired - Lifetime US2381142A (en) 1942-04-14 1942-04-14 Dental floss

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2535373A (en) * 1944-11-08 1950-12-26 American Viscose Corp Molded objects
US3771536A (en) * 1972-05-08 1973-11-13 W Dragan Dental floss and method of making same
US3800812A (en) * 1972-11-27 1974-04-02 Pauldan Ind Inc Dental floss and method of making same
US4265258A (en) * 1979-08-28 1981-05-05 Eaton Melvin H Ii Dental floss
US4414990A (en) * 1982-04-02 1983-11-15 Johnson & Johnson Products, Inc. Fluoridated dental articles
US5098711A (en) * 1988-11-14 1992-03-24 Ira Hill Method of treating the oral cavity with dental floss containing chemotherapeutic agents
US5311889A (en) * 1991-06-10 1994-05-17 Csm Patents, Inc. Dental floss & pre-threaded leader
EP0686390A2 (en) 1994-06-06 1995-12-13 JOHNSON & JOHNSON CONSUMER PRODUCTS, INC. Novel compositions for dental floss
US5845652A (en) * 1995-06-06 1998-12-08 Tseng; Mingchih M. Dental floss
US5904152A (en) * 1995-06-06 1999-05-18 Gillette Canada Inc. Dental floss
US6027592A (en) * 1995-06-06 2000-02-22 Gillette Canada Inc. Dental floss
US6039054A (en) * 1998-09-23 2000-03-21 Gillette Canada Company Dental floss
US20040123877A1 (en) * 2002-12-30 2004-07-01 Brown Dale G. Coated multifilament dental devices overcoated with imbedded particulate
WO2005070323A1 (en) * 2004-01-26 2005-08-04 Israel Yerushalmy Spider silk dental floss
US20070110681A1 (en) * 2001-12-04 2007-05-17 Whitehill Oral Technologies, Inc. Flavor-stable dental devices

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2535373A (en) * 1944-11-08 1950-12-26 American Viscose Corp Molded objects
US3771536A (en) * 1972-05-08 1973-11-13 W Dragan Dental floss and method of making same
US3800812A (en) * 1972-11-27 1974-04-02 Pauldan Ind Inc Dental floss and method of making same
US4265258A (en) * 1979-08-28 1981-05-05 Eaton Melvin H Ii Dental floss
US4414990A (en) * 1982-04-02 1983-11-15 Johnson & Johnson Products, Inc. Fluoridated dental articles
US5098711A (en) * 1988-11-14 1992-03-24 Ira Hill Method of treating the oral cavity with dental floss containing chemotherapeutic agents
US5311889A (en) * 1991-06-10 1994-05-17 Csm Patents, Inc. Dental floss & pre-threaded leader
EP0686390A2 (en) 1994-06-06 1995-12-13 JOHNSON & JOHNSON CONSUMER PRODUCTS, INC. Novel compositions for dental floss
US6027592A (en) * 1995-06-06 2000-02-22 Gillette Canada Inc. Dental floss
US5904152A (en) * 1995-06-06 1999-05-18 Gillette Canada Inc. Dental floss
US5845652A (en) * 1995-06-06 1998-12-08 Tseng; Mingchih M. Dental floss
US6039054A (en) * 1998-09-23 2000-03-21 Gillette Canada Company Dental floss
US20070110681A1 (en) * 2001-12-04 2007-05-17 Whitehill Oral Technologies, Inc. Flavor-stable dental devices
US20040123877A1 (en) * 2002-12-30 2004-07-01 Brown Dale G. Coated multifilament dental devices overcoated with imbedded particulate
US7152611B2 (en) 2002-12-30 2006-12-26 International Tape Partners, Llc Coated multifilament dental devices overcoated with imbedded particulate
WO2005070323A1 (en) * 2004-01-26 2005-08-04 Israel Yerushalmy Spider silk dental floss

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