WO1992022699A1 - Procede permettant de teindre des filaments de nylon - Google Patents

Procede permettant de teindre des filaments de nylon Download PDF

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Publication number
WO1992022699A1
WO1992022699A1 PCT/US1992/004589 US9204589W WO9222699A1 WO 1992022699 A1 WO1992022699 A1 WO 1992022699A1 US 9204589 W US9204589 W US 9204589W WO 9222699 A1 WO9222699 A1 WO 9222699A1
Authority
WO
WIPO (PCT)
Prior art keywords
solution
nylon filament
nylon
batch
filament
Prior art date
Application number
PCT/US1992/004589
Other languages
English (en)
Inventor
Christopher H. Suhonen
Original Assignee
Gillette Canada Inc.
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 Gillette Canada Inc. filed Critical Gillette Canada Inc.
Priority to KR1019930703630A priority Critical patent/KR100205843B1/ko
Priority to CA002109935A priority patent/CA2109935C/fr
Priority to DE69216234T priority patent/DE69216234T2/de
Priority to AU21862/92A priority patent/AU663099B2/en
Priority to EP92913760A priority patent/EP0591361B1/fr
Priority to BR9206016-1A priority patent/BR9206016A/pt
Publication of WO1992022699A1 publication Critical patent/WO1992022699A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B15/00—Other brushes; Brushes with additional arrangements
    • A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
    • A46B15/0004—Arrangements for enhancing monitoring or controlling the brushing process with a controlling means
    • A46B15/001—Arrangements for enhancing monitoring or controlling the brushing process with a controlling means with means indicating the remaining useful life of brush
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/04—Preparing bristles
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/0004—General aspects of dyeing
    • D06P1/002—Processing by repeated dyeing, e.g. in different baths
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/24—Polyamides; Polyurethanes
    • D06P3/241—Polyamides; Polyurethanes using acid dyes

Definitions

  • the invention relates to filaments for toothbrushes.
  • Breuer et al. U.S. Pat. No. 4,802,255 describes nylon monofilaments that include at least two colored regions, one of which is provided by a dye.
  • the monofilaments are included in the bristles of toothbrushes and, as the toothbrush is used by the owner, the color intensity of the dyed region changes in response to wear, providing an indication of when the toothbrush should be replaced.
  • Breuer et al. lists six food dyes or colorants that can be used to dye the monofilaments including Indigotine (FD&C Blue No. 2) , and in col. 4 broadly describes the conditions that can be used for dyeing.
  • Breuer et al. also provides a number of specific examples of dyeing procedures, including three (examples 4-6) in which Indigotine is used as the dye.
  • the invention is a method for dyeing batches of nylon filaments for toothbrushes.
  • a batch is at least two pounds of nylon filament.
  • the method includes immersing a batch of a first nylon filament for between 10 minutes and 80 minutes in an aqueous solution containing between .01% and 0.1% weight to volume of Indigotine dye.
  • the solution should have a pH between 1 and 7, and should have a temperature between 50 ⁇ C. and 90 *C.
  • the nylon filament is immersed, the dye penetrates into an outer cross-sectional region but not into an inner cross-sectional region.
  • the batch of the first nylon filament is removed from the solution, and can be used for bristles in a wear-indicating toothbrush.
  • the same procedure is repeated for a batch of a second nylon filament, reusing the same solution.
  • the same solution is then used for dyeing additional batches.
  • the aqueous solution contains between 0.01% and 0.05% weight to volume of Indigotine dye; the solution has a pH of between 2.5 and 4.5; and the temperature of the solution is between 70'C. and 85"C.
  • the dyeing step is performed at atmospheric pressure and takes less than 60 minutes, and the nylon filaments have a diameter of between 0.005 inches and 0.014 inches.
  • the method can be used to produce commercial quantities of nylon filaments for use in wear- indicating toothbrushes in a cost-effective manner. For example, the procedure can be used on 10-40 lb.
  • the dyeing solution used in the method of the invention contains between 0.01% and 0.1% weight to volume Indigotine. If too much Indigotine is used, too much dye penetrates too far into the filament. If too little dye is used, too little dye may penetrate, and the solution may not be reusable because the initial batch of filament may absorb the limited quantity of dye present.
  • the temperature of the solution should be between 50 ⁇ C. and 90 ⁇ C. Too high a temperature results in water quickly evaporating off, resulting in the dye becoming more concentrated, and the dye being taken up too fast, making the degree of penetration more difficult to control. Too low a temperature results in too slow a dye uptake.
  • the dyeing process preferably is done at atmospheric pressure, to avoid the necessity of using large pressurized equipment in a plant.
  • Indigotine is an acid stable dye, and the solution should be acidic.
  • the volume of dyeing solution should be large enough so that the first batch of filament does not absorb such a high percentage of the dye in the solution that the solution cannot be reused to dye a second batch.
  • the nylon filaments should be of the diameter commonly used in toothbrushes, most preferably 0.008 or 0.009 inch.
  • the nylon filament should be immersed in solution long enough to get adequate dye penetration of the outer cross-sectional diameter of the filament to provide good wear-indicating characteristics.
  • the immersion time should be as limited as possible, and should be less than 1 hour.
  • the dyeing step is performed in a 633 gallon Whiting stainless steel tank having side dimensions of 30" x 40" x 130".
  • the dyeing solution used in the tan ' includes 633 gallons of distilled water; 7.7 liters of glacial acidic acid; and 555 g of 100% pure Indigotine. The temperature of the solution is maintained at 75*C. + 1.5*C.
  • the first tank is filled with tap water.
  • the second tank is filled with tap water mixed with 1.5 liters of Dow Corning #24 silicone emulsion.
  • the monofilament used is an eight foot long, 0.008 inch diameter Wytex 6.12 S nylon hank (bundle) weighing approximately 10 pounds.
  • the hank should be siliconed, annealed, wet, and combed prior to dyeing, according to standard procedures. The hank should not be dried prior to use.
  • the above procedure can be modified by immersing set of hanks for 30 minutes in a dyeing solution heated to 80 ⁇ C. + 1.5 ⁇ C.
  • the procedure can be used to dye 10 hanks at a time, as opposed to four hanks.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)

Abstract

Procédé permettant de teindre des filaments de nylon destinés à être utilisés pour indiquer l'usure des brosses à dents. Dans ce procédé on plonge une charge d'un premier filament de nylon pendant environ 10 à 80 minutes dans une solution aqueuse contenant environ entre 0,01 % et 0,19 % en poids par rapport au volume de colorant indigotine, le pH de cette solution se situant entre 1 et 7 et sa température étant comprise entre 50 °C et 90 °C. Le colorant pénètre dans le filament pour colorer une zone externe en coupe transversale mais ne pénètre pas dans une zone interne en coupe transversale dudit filament. On retire la charge de premier filament de nylon de la solution et on recommence ces étapes pour une charge d'un deuxième filament de nylon, en utilisant de nouveau la même solution.
PCT/US1992/004589 1991-06-17 1992-06-02 Procede permettant de teindre des filaments de nylon WO1992022699A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
KR1019930703630A KR100205843B1 (ko) 1991-06-17 1992-06-02 나일론 필라멘트 염색방법
CA002109935A CA2109935C (fr) 1991-06-17 1992-06-02 Methode de teinture des fils nylon
DE69216234T DE69216234T2 (de) 1991-06-17 1992-06-02 Verfahren zur Färbung von Nylonspinnfäden
AU21862/92A AU663099B2 (en) 1991-06-17 1992-06-02 Commercial uniform dyeing of batches of nylon filaments
EP92913760A EP0591361B1 (fr) 1991-06-17 1992-06-02 Procede permettant de teindre des filaments de nylon
BR9206016-1A BR9206016A (pt) 1991-06-17 1992-06-02 Processo para tingir filamentos de nylon para escovas de dentes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US71619691A 1991-06-17 1991-06-17
US716,196 1991-06-17

Publications (1)

Publication Number Publication Date
WO1992022699A1 true WO1992022699A1 (fr) 1992-12-23

Family

ID=24877134

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1992/004589 WO1992022699A1 (fr) 1991-06-17 1992-06-02 Procede permettant de teindre des filaments de nylon

Country Status (12)

Country Link
EP (1) EP0591361B1 (fr)
JP (1) JP2831465B2 (fr)
KR (1) KR100205843B1 (fr)
CN (1) CN1051118C (fr)
AU (1) AU663099B2 (fr)
BR (1) BR9206016A (fr)
CA (1) CA2109935C (fr)
DE (1) DE69216234T2 (fr)
MX (1) MX9202915A (fr)
SG (1) SG48428A1 (fr)
WO (1) WO1992022699A1 (fr)
ZA (1) ZA923986B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100425767C (zh) * 2007-02-03 2008-10-15 王小芳 一种尖头刷丝的染色方法
CN103806307A (zh) * 2013-12-18 2014-05-21 慈溪市洁达纳米复合材料有限公司 一种刷丝镀彩染色的制备方法
CN105033836B (zh) * 2015-07-06 2017-12-08 上海悦瑞电子科技有限公司 一种基于3d打印产品表面上色的工艺处理方法
JP6232511B1 (ja) * 2017-03-03 2017-11-15 株式会社ショーワ デニム製品用糸の製造方法、並びにその方法によって製造されたデニム製品用糸、デニム製品用生地、及びデニム製品
CN107724117A (zh) * 2017-09-21 2018-02-23 晋江市明仨纺织品科技有限公司 一种自动脱色纤维的制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2558992A (en) * 1951-07-03 Colored nylon article and method
US4802255A (en) * 1987-08-10 1989-02-07 Gillette Canada Inc. Novel brush filaments
US5061290A (en) * 1989-07-10 1991-10-29 Mitsui Toatsu Chemicals, Incorporated Rope dyeing process using halogen indigo derivative and dyed article thus obtained

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2558992A (en) * 1951-07-03 Colored nylon article and method
US4802255A (en) * 1987-08-10 1989-02-07 Gillette Canada Inc. Novel brush filaments
US5061290A (en) * 1989-07-10 1991-10-29 Mitsui Toatsu Chemicals, Incorporated Rope dyeing process using halogen indigo derivative and dyed article thus obtained

Also Published As

Publication number Publication date
CN1067936A (zh) 1993-01-13
ZA923986B (en) 1993-02-24
EP0591361A4 (en) 1994-05-18
MX9202915A (es) 1993-01-01
AU2186292A (en) 1993-01-12
JPH06503860A (ja) 1994-04-28
EP0591361A1 (fr) 1994-04-13
DE69216234T2 (de) 1997-06-05
CN1051118C (zh) 2000-04-05
AU663099B2 (en) 1995-09-28
BR9206016A (pt) 1994-08-02
JP2831465B2 (ja) 1998-12-02
KR100205843B1 (ko) 1999-07-01
SG48428A1 (en) 1998-04-17
CA2109935C (fr) 2000-01-25
EP0591361B1 (fr) 1996-12-27
DE69216234D1 (de) 1997-02-06

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