CA2661801A1 - Monofilaments with split ends - Google Patents

Monofilaments with split ends Download PDF

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Publication number
CA2661801A1
CA2661801A1 CA002661801A CA2661801A CA2661801A1 CA 2661801 A1 CA2661801 A1 CA 2661801A1 CA 002661801 A CA002661801 A CA 002661801A CA 2661801 A CA2661801 A CA 2661801A CA 2661801 A1 CA2661801 A1 CA 2661801A1
Authority
CA
Canada
Prior art keywords
monofilaments
split ends
voids
monofilament
thermoplastic polymeric
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.)
Granted
Application number
CA002661801A
Other languages
French (fr)
Other versions
CA2661801C (en
Inventor
Robert L. Rackley
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.)
EIDP Inc
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Priority to CA2661801A priority Critical patent/CA2661801C/en
Priority claimed from CA002560512A external-priority patent/CA2560512C/en
Publication of CA2661801A1 publication Critical patent/CA2661801A1/en
Application granted granted Critical
Publication of CA2661801C publication Critical patent/CA2661801C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0292—Bristles having split ends
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
    • D01D5/247—Discontinuous hollow structure or microporous structure
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Brushes (AREA)

Abstract

Monofilaments with split ends. The monofilaments can be used to form toothbrush bristles having flagged or feathered tips. Each of the monofilaments has a plurality of internal fusion lines and at least four voids, wherein the voids comprise between 5 and 20 %
of the cross-sectional area of the monofilaments. Preferably, the monofilaments each have a diameter in a range of 0.0025 to 0.012 inches, and have a hexalocular or an octalocular configuration. The monofilaments are manufactured by extruding a plurality of thermoplastic polymeric streams, rotating a plurality of cutting blades above 1000 rpm, and placing a plurality of cutting blades in contact with end portions of the plurality of thermoplastic polymeric streams to form split ends.

Claims (3)

1. A brush monofilament having a portion with a plurality of internal fusion lines and at least four voids, wherein said voids occupy between 5 and 20% of a cross-sectional area of the monofilament, said brush monofilament having a hexalocular, or an octalocular.
2. The brush monofilament of claim 1 wherein said brush monofilament is a toothbrush bristle.
3. The brush monofilament of claim 1 or 2 wherein said brush monofilament comprises thermoplastic polymeric material selected from the group consisting of nylon 610, nylon 612, a polyamide, and polybutylene terephthalate.
CA2661801A 1997-04-24 1997-04-24 Monofilaments with split ends Expired - Lifetime CA2661801C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2661801A CA2661801C (en) 1997-04-24 1997-04-24 Monofilaments with split ends

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA2661801A CA2661801C (en) 1997-04-24 1997-04-24 Monofilaments with split ends
CA002560512A CA2560512C (en) 1997-04-24 1997-04-24 Monofilaments with split ends

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002560512A Division CA2560512C (en) 1997-04-24 1997-04-24 Monofilaments with split ends

Publications (2)

Publication Number Publication Date
CA2661801A1 true CA2661801A1 (en) 1998-10-29
CA2661801C CA2661801C (en) 2012-01-24

Family

ID=40792821

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2661801A Expired - Lifetime CA2661801C (en) 1997-04-24 1997-04-24 Monofilaments with split ends

Country Status (1)

Country Link
CA (1) CA2661801C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016058083A1 (en) * 2014-10-13 2016-04-21 Tarkett Inc. Tubular monofilament fiber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016058083A1 (en) * 2014-10-13 2016-04-21 Tarkett Inc. Tubular monofilament fiber

Also Published As

Publication number Publication date
CA2661801C (en) 2012-01-24

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Legal Events

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EEER Examination request