US20040064898A1 - Method for improving the colour fastness of textile material made of plastics - Google Patents

Method for improving the colour fastness of textile material made of plastics Download PDF

Info

Publication number
US20040064898A1
US20040064898A1 US10/467,978 US46797803A US2004064898A1 US 20040064898 A1 US20040064898 A1 US 20040064898A1 US 46797803 A US46797803 A US 46797803A US 2004064898 A1 US2004064898 A1 US 2004064898A1
Authority
US
United States
Prior art keywords
heat treatment
recited
dyeing
minutes
material made
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.)
Abandoned
Application number
US10/467,978
Inventor
Heike Bartl
Cornelia Kinscherf
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.)
Carl Freudenberg KG
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
Assigned to CARL FREUDENBERG KG reassignment CARL FREUDENBERG KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KINSCHERF, CORNELIA, BARTL, HEIKE
Publication of US20040064898A1 publication Critical patent/US20040064898A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • D06P3/82—Textiles which contain different kinds of fibres
    • D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
    • D06P3/8214—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing ester and amide groups
    • 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
    • D06P1/22—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 using vat dyestuffs including indigo
    • 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
    • D06P3/243—Polyamides; Polyurethanes using vat or sulfur dyes, indigo
    • 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
    • D06P3/34—Material containing ester groups
    • D06P3/52—Polyesters
    • D06P3/523—Polyesters using vat or sulfur dyes
    • 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
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/20—Physical treatments affecting dyeing, e.g. ultrasonic or electric
    • D06P5/2066—Thermic treatments of textile materials
    • D06P5/2077—Thermic treatments of textile materials after dyeing

Definitions

  • the present invention relates to a method of improving the colorfastness of textile materials made of synthetics.
  • Synthetic materials are not adequately dyed by the traditional dyeing methods. Problems occur with polyesters (PES), polyamides (PA), polyurethanes (PU) and other synthetics in particular when the textile material is composed of a blend of different synthetics, e.g., PA and PES. Additional problems occur when dealing with microfibers. Therefore, there has been a search for possibilities which yield good dyeing of individual synthetics and blends and also have high use fastness values such as washfastness and lightfastness.
  • PET polyesters
  • PA polyamides
  • PU polyurethanes
  • European Patent 0 772 709 B1 describes a method of dyeing materials made of synthetics using vat dyestuffs, which yields greatly improved washfastness and lightfastness in comparison with older methods (Thomas Vickerstaff, The Physical Chemistry of Dyeing (1968), 2 nd edition, page 479), and the method described there includes the following steps:
  • the object of the present invention is to provide a method which yields good colorfastness results—in particular lightfastness—as well as causing only a minor loss of tensile strength by working with smaller quantities of alkali, in particular in the case of material made of PES and/or PA.
  • this object is achieved by a method as defined in the preamble in which the material is exposed to at least one additional heat treatment following its dyeing.
  • This method preferably involves the heat treatment being performed in a dry atmosphere for a period of 0.1 sec to 60 min at temperatures between 50° C. and 300° C.
  • the process may be carried out by performing the heat treatment in the presence of moisture for 0.1 sec to 60 min, at temperatures between 50° C. and 300° C.
  • the heat treatment is performed for a period of time from 0.1 sec to 2 min at temperatures between 100° C. and 250° C.
  • the additional heat treatment is preferably performed during treatment steps such as embossing, finishing or make-up of the material.
  • the additional heat treatment is preferably applied to a material containing microfibers or made entirely of microfibers.
  • the additional heat treatment is preferably applied to a material made of a nonwoven, in particular a material made of PA and/or a mixture of PA and PES fibers and/or microfibers.
  • Microfibers or microfilaments in the sense of this patent application are understood to be those having a titer of ⁇ 1 dtex.
  • a microfilament nonwoven made of 35 wt % PA and 65 wt % PES is dyed in a one-step exhaust method using the vat dyestuff indicated in Table 1 (3% dyestuff used, based on the fiber weight).
  • the vat dyestuff is dispersed together with 1 g/L of the dispersant Dekol® SN and 0.5 g/L of Trilon® TA, a chelating agent.
  • the bath ratio is 1:20. It is first heated to 80° C., then pigmented for 20 minutes at this temperature. Vatting is performed with 20 mL/L NaOH (32 wt %) and 8 g/L hydrosulfite.
  • a microfilament nonwoven made of 35 wt % PA and 65 wt % PES is dyed in a one-step exhaust dyeing process using a mixture of the dispersed dyes and vat dyes listed in Table 2. Both the disperse dye and the vat dye are dispersed together with 1 g/L of the dispersant Dekol® SN and 0.5 g/L of the chelating agent Trilon® TA and then the pH is adjusted to 4.5 to 5 using acetic acid. The bath ratio is 1:20. Dyeing is performed at 130° C. for 45 minutes. Then the bath is cooled to 80° C.
  • vatting is performed using 12 mL/L NaOH (32 wt %) and 6 g/L hydrosulfite with the addition of 20 g/L of Glauber's salt. After vatting, dyeing is continued for 30 minutes at 80° C., then cooling to 50° C. and rinsing. Oxidation is performed at a bath ratio of 1:20 using 5 mL/L hydrogen peroxide (30 wt %) for 15 minutes at 60° C. followed by saponification at 40° C. with 2 g/L soda and 1 g/L Kieralon® B. After drying, heat treatment is performed for 1 minute at 150° C.
  • a printing paste containing 800 g/L of a stock paste of 600 g/L starch ether thickener, 50 g/L Glyezin® A, 100 g/L potash and 100 g/L Rongalit C+20 g/L of the vat dyestuff Indanthrene® Yellow T-5GF and 180 g/L water is applied with a doctor blade to a microfilament nonwoven of 35 wt % PA and 65 wt % PES, dried at 98° C., fixed for 10 minutes at 102° C. with saturated steam. The dyeing is then rinsed and oxidized for 15 minutes at 60° C.
  • embossing is performed at 240° C. using a calender.
  • a microfilament nonwoven having a weight of 100 g/m 2 containing 35 wt % PA and 65 wt % PES is pad dyed at room temperature using a vat containing 100 g/L of the vat dyestuff Indanthrene Direct Black RB, dried at 120° C. and then developed by a saturated steam treatment for 1 minute at 103° C. using 60 g/L NaOH (50 wt %) and 80 g/L hydrosulfite (bath uptake 100%). Oxidation is performed using 10 mL/L hydrogen peroxide (50 wt %) at a bath ratio of 1:20.
  • a microfilament nonwoven made of 35 wt % PA and 65 wt % PES is dyed in a one-step exhaust dyeing method with 6.6% (based on the fiber weight) of the vat dyestuff C.I. Vat Black 27 at a bath ratio of 1:57.
  • Vatting is performed with 25 mL/L NaOH (32 wt %) and 9 g/L hydrosulfite.
  • Example 3 of European Patent 0772709 B1 the microfilament nonwoven described in Example 5, containing 35 wt % PA and 65 wt % PES, was dyed with C.I. Vat Black 27.
  • a sample of nonwoven (1.5 g) was treated for 45 minutes at 95° C. in an aqueous solution of C.I. Vat Black 27 (2 mL of a 5% aqueous solution), sodium hydroxide (10 mL of a 4M aqueous solution), Rongal HT (3 g) and water (60 mL).
  • the treated sample was rinsed, oxidized by treating it with 75 mL of an aqueous solution of potassium dichromate (1.5 g) and acetic acid (15 g) for 30 minutes at 65° C., then rinsed and washed with 75 mL of an aqueous solution containing soap flakes (3.75 g) in boiling water for 10 minutes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The invention relates to a method for improving the colour fastness of textile material made of plastics, whereby one or more vat dyes are applied to the textile material which undergoes heat treatment on its own or combined with other dyes/pigments. The material undergoes at least one additional heat treatment in connection with the colour thereof.

Description

  • The present invention relates to a method of improving the colorfastness of textile materials made of synthetics. [0001]
    • BACKGROUND INFORMATION
  • Synthetic materials are not adequately dyed by the traditional dyeing methods. Problems occur with polyesters (PES), polyamides (PA), polyurethanes (PU) and other synthetics in particular when the textile material is composed of a blend of different synthetics, e.g., PA and PES. Additional problems occur when dealing with microfibers. Therefore, there has been a search for possibilities which yield good dyeing of individual synthetics and blends and also have high use fastness values such as washfastness and lightfastness. [0002]
  • European Patent 0 772 709 B1 describes a method of dyeing materials made of synthetics using vat dyestuffs, which yields greatly improved washfastness and lightfastness in comparison with older methods (Thomas Vickerstaff, [0003] The Physical Chemistry of Dyeing (1968), 2nd edition, page 479), and the method described there includes the following steps:
  • a) Selecting a vat dyestuff [0004]
  • b) Treating the material with the dyestuff in the presence of a reducing agent and an alkali, where the alkali has a concentration of more than 0.2 mol/L and [0005]
  • c) Oxidizing the treated material produced in step b). [0006]
  • The disadvantage of this method is that the large quantities of alkali required result in a substantial wastewater load and high process costs. In the case of fiber materials containing PES, e.g., PA/PES blends, the large amounts of alkali used may also result in damage to the PES fiber and thus a considerable loss of tensile strength. [0007]
    • EXPLANATION OF THE INVENTION
  • The object of the present invention is to provide a method which yields good colorfastness results—in particular lightfastness—as well as causing only a minor loss of tensile strength by working with smaller quantities of alkali, in particular in the case of material made of PES and/or PA. [0008]
  • According to the present invention, this object is achieved by a method as defined in the preamble in which the material is exposed to at least one additional heat treatment following its dyeing. [0009]
  • This method preferably involves the heat treatment being performed in a dry atmosphere for a period of 0.1 sec to 60 min at temperatures between 50° C. and 300° C. [0010]
  • As an alternative, the process may be carried out by performing the heat treatment in the presence of moisture for 0.1 sec to 60 min, at temperatures between 50° C. and 300° C. [0011]
  • The heat treatment is performed for a period of time from 0.1 sec to 2 min at temperatures between 100° C. and 250° C. [0012]
  • The additional heat treatment is preferably performed during treatment steps such as embossing, finishing or make-up of the material. [0013]
  • The additional heat treatment is preferably applied to a material containing microfibers or made entirely of microfibers. [0014]
  • The additional heat treatment is preferably applied to a material made of a nonwoven, in particular a material made of PA and/or a mixture of PA and PES fibers and/or microfibers. [0015]
  • In this way the colorfastness, in particular the lightfastness of the dyeings is greatly increased, as shown by the following examples. At the same time, in comparison with the known dyeing method, samples obtained in dyeing polyester fibers show only a comparatively minor loss of tensile strength. [0016]
  • Microfibers or microfilaments in the sense of this patent application are understood to be those having a titer of <1 dtex. [0017]
  • The present invention is explained below on the basis of five examples. The results of the evaluation of colorfastness are subsequently summarized. [0018]
    • EXAMPLE 1
  • A microfilament nonwoven made of 35 wt % PA and 65 wt % PES is dyed in a one-step exhaust method using the vat dyestuff indicated in Table 1 (3% dyestuff used, based on the fiber weight). For this purpose, the vat dyestuff is dispersed together with 1 g/L of the dispersant Dekol® SN and 0.5 g/L of Trilon® TA, a chelating agent. The bath ratio is 1:20. It is first heated to 80° C., then pigmented for 20 minutes at this temperature. Vatting is performed with 20 mL/L NaOH (32 wt %) and 8 g/L hydrosulfite. After vatting, dyeing is continued for 30 minutes at 80° C., then it is cooled to 50° C. and rinsed. Oxidation is performed at a bath ratio of 1:20 using 5 mL/L hydrogen peroxide (30 wt %) for 15 minutes at 60° C. followed by saponification at 70° C. with 2 g/L soda and 1 g/L Kieralon® B. After drying, heat treatment is performed for 1 minute at 180° C. on the tenter frame. [0019]
    • EXAMPLE 2
  • A microfilament nonwoven made of 35 wt % PA and 65 wt % PES is dyed in a one-step exhaust dyeing process using a mixture of the dispersed dyes and vat dyes listed in Table 2. Both the disperse dye and the vat dye are dispersed together with 1 g/L of the dispersant Dekol® SN and 0.5 g/L of the chelating agent Trilon® TA and then the pH is adjusted to 4.5 to 5 using acetic acid. The bath ratio is 1:20. Dyeing is performed at 130° C. for 45 minutes. Then the bath is cooled to 80° C. and vatting is performed using 12 mL/L NaOH (32 wt %) and 6 g/L hydrosulfite with the addition of 20 g/L of Glauber's salt. After vatting, dyeing is continued for 30 minutes at 80° C., then cooling to 50° C. and rinsing. Oxidation is performed at a bath ratio of 1:20 using 5 mL/L hydrogen peroxide (30 wt %) for 15 minutes at 60° C. followed by saponification at 40° C. with 2 g/L soda and 1 g/L Kieralon® B. After drying, heat treatment is performed for 1 minute at 150° C. [0020]
    • EXAMPLE 3
  • A printing paste containing 800 g/L of a stock paste of 600 g/L starch ether thickener, 50 g/L Glyezin® A, 100 g/L potash and 100 g/L Rongalit C+20 g/L of the vat dyestuff Indanthrene® Yellow T-5GF and 180 g/L water is applied with a doctor blade to a microfilament nonwoven of 35 wt % PA and 65 wt % PES, dried at 98° C., fixed for 10 minutes at 102° C. with saturated steam. The dyeing is then rinsed and oxidized for 15 minutes at 60° C. with 5 mL/L hydrogen peroxide (30 wt %) and saponified at 70° C. with 2 g/L soda and 1 g/L Kieralon® B. After drying, embossing is performed at 240° C. using a calender. [0021]
    • EXAMPLE 4
  • A microfilament nonwoven having a weight of 100 g/m[0022] 2 containing 35 wt % PA and 65 wt % PES is pad dyed at room temperature using a vat containing 100 g/L of the vat dyestuff Indanthrene Direct Black RB, dried at 120° C. and then developed by a saturated steam treatment for 1 minute at 103° C. using 60 g/L NaOH (50 wt %) and 80 g/L hydrosulfite (bath uptake 100%). Oxidation is performed using 10 mL/L hydrogen peroxide (50 wt %) at a bath ratio of 1:20. At the same time 3 mL/L acetic acid (60 wt %) is used for neutralization. Then saponification is performed at 70° C. using 2 g/L soda and 1 g/L Kieralon® B. After drying, heat treatment is performed for 1 minute at 200° C.
    • EXAMPLE 5
  • A microfilament nonwoven made of 35 wt % PA and 65 wt % PES is dyed in a one-step exhaust dyeing method with 6.6% (based on the fiber weight) of the vat dyestuff C.I. Vat Black 27 at a bath ratio of 1:57. [0023]
  • First it is heated to 95° C., then pigmenting is performed at this temperature for 20 minutes. [0024]
  • Vatting is performed with 25 mL/L NaOH (32 wt %) and 9 g/L hydrosulfite. [0025]
  • After vatting, dyeing is continued for 45 minutes at 95° C., then cooling to 50° C. and rinsing and oxidizing and saponifying as described in Example 1. [0026]
  • After drying, heat treatment is performed for 1 minute at 180° C. in a tenter frame. [0027]
    • COMPARATIVE EXAMPLE
  • According to Example 3 of European Patent 0772709 B1, the microfilament nonwoven described in Example 5, containing 35 wt % PA and 65 wt % PES, was dyed with C.I. Vat Black 27. A sample of nonwoven (1.5 g) was treated for 45 minutes at 95° C. in an aqueous solution of C.I. Vat Black 27 (2 mL of a 5% aqueous solution), sodium hydroxide (10 mL of a 4M aqueous solution), Rongal HT (3 g) and water (60 mL). The treated sample was rinsed, oxidized by treating it with 75 mL of an aqueous solution of potassium dichromate (1.5 g) and acetic acid (15 g) for 30 minutes at 65° C., then rinsed and washed with 75 mL of an aqueous solution containing soap flakes (3.75 g) in boiling water for 10 minutes. [0028]
  • After the process described here without a heat aftertreatment, the lightfastness and tensile strength values listed in Table 5 are obtained. [0029]
  • The results obtained for the lightfastness are summarized in the following tables: [0030]
    TABLE 1
    Indanthrene ® Ruby R Indanthrene ® Orange GR
    With heat With heat
    treatment treatment
    No heat 1 min at No heat 1 min at
    treatment 180° C. after treatment 180° C. after
    Example 1 after dyeing dyeing after dyeing dyeing
    Lightfastness 5 6 5-6 7-8
    EN ISO 105
    B02
  • [0031]
    TABLE 2
    1% Dianix Red AM-B
    3% Indanthrene ® Red FFB
    No heat With heat
    treatment after treatment 1 min at
    Example 2 dyeing 150° C. after dyeing
    Lightfastness 5 6
    EN ISO 105 B02
  • [0032]
    TABLE 3
    Indanthrene ® Yellow T-5GF
    No heat With heat treatment
    treatment after (embossing) at
    Example 3 dyeing 240° C. after dyeing
    Lightfastness 6 6-7
    EN ISO 105 B02
  • [0033]
    TABLE 4
    Indanthrene ® Direct Black RB
    No heat With heat
    treatment after treatment 1 min at
    Example 4 dyeing 200° C. after dyeing
    Lightfastness 4 5
    EN ISO 105 B02
  • [0034]
    TABLE 5
    C.I. Vat Black 27
    With heat treatment
    1 min at 180° C. after Comparative
    Example 5 dyeing Example
    Lightfastness 5-6 5-6
    EN ISO 105 B02
    Maximum tensile 229.5 N 95.3 N
    strength EN20073, part 3
  • Lightfastness according to EN ISO 105b02: score 1=very bad, 8=very good [0035]

Claims (10)

What is claimed is:
1. A method of improving the colorfastness of textile material manufactured from synthetics in which the textile material is exposed to a heat treatment when applying one or more vat dyestuffs alone or in combination with other dyestuffs/pigments,
wherein the material is exposed to at least one additional heat treatment following its dyeing.
2. The method as recited in claim 1,
wherein the heat treatment is performed in a dry atmosphere for a period of time from 0.1 second to 60 minutes at temperatures between 50° C. and 300° C.
3. The method as recited in claim 1,
wherein the heat treatment is performed in the presence of moisture for 0.1 second to 60 minutes at temperatures between 50° C. and 300° C.
4. The method as recited in one of claims 2 or 3,
wherein the heat treatment is performed for a period of time from 0.1 second to 2 minutes.
5. The method as recited in one of claims 2 or 3,
wherein the heat treatment is performed between 100° C. and 250° C.
6. The method as recited in one of claims 1 through 5,
wherein the additional heat treatment is performed in treatment steps such as embossing, finishing or make-up of the material.
7. The method as recited in one of claims 1 through 6,
wherein the additional heat treatment is applied to a material containing microfibers.
8. The method as recited in one of claims 1 through 6,
wherein the additional heat treatment is applied to a material made entirely of microfibers.
9. The method as recited in one of claims 7 through 8,
wherein the additional heat treatment is applied to a material made of a nonwoven.
10. The method as recited in one of claims 1 through 9,
wherein the additional heat treatment is applied to a material made of PA and/or a blend of PA and PES fibers and/or microfibers.
US10/467,978 2001-02-13 2001-12-18 Method for improving the colour fastness of textile material made of plastics Abandoned US20040064898A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10107057.8 2001-02-13
DE10107057A DE10107057A1 (en) 2001-02-13 2001-02-13 Process for improving the color fastness of textile materials made of plastics
PCT/EP2001/014912 WO2002064880A1 (en) 2001-02-13 2001-12-18 Method for improving the colour fastness of textile material made of plastics

Publications (1)

Publication Number Publication Date
US20040064898A1 true US20040064898A1 (en) 2004-04-08

Family

ID=7674152

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/467,978 Abandoned US20040064898A1 (en) 2001-02-13 2001-12-18 Method for improving the colour fastness of textile material made of plastics

Country Status (4)

Country Link
US (1) US20040064898A1 (en)
EP (1) EP1368527A1 (en)
DE (1) DE10107057A1 (en)
WO (1) WO2002064880A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019145020A1 (en) * 2018-01-23 2019-08-01 Calik Denim Tekstil San. Ve Tic. A.S. Processes and installations for dyeing synthetic fibers and dyed fibers and fabrics containing said dyed fibers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10231315A1 (en) * 2002-07-10 2004-02-05 Carl Freudenberg Kg Coloring mixed polyamide-polyester textile material, e.g. for clothing, involves dyeing with vat dye or sulfur dye under acid to neutral conditions and then under alkaline reducing conditions and then oxidizing the dye

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5873909A (en) * 1996-10-29 1999-02-23 Ducoa, L.P. Method and compositions for treating fibrous cellulosic materials
US5910622A (en) * 1996-10-29 1999-06-08 Dcv, Inc. Method for treating fibrous cellulosic materials

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE901168C (en) * 1944-01-10 1954-01-07 Durand & Huguenin Ag Process for improving the lightfastness of dyeings and prints with Kuepen dyes and their leuco ester salts on fully synthetic structures made of superpolyamides or super-polyurethanes
CH348951A (en) * 1957-01-17 1960-09-30 Cassella Farbwerke Mainkur Ag Preparation for printing and dyeing textiles made from high molecular weight polyesters of aromatic dicarboxylic acids
US5607483A (en) * 1994-07-29 1997-03-04 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The U.K. Of Great Britain & Northern Ireland Dyed materials
DE4427568A1 (en) * 1994-08-04 1996-02-08 Sucker & Franz Mueller Gmbh Application of reactive or vat dyes during sizing
DE19956780A1 (en) * 1999-11-25 2001-06-13 Freudenberg Carl Fa Process for the production of dyed textile materials consisting of polyester and polyamide

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5873909A (en) * 1996-10-29 1999-02-23 Ducoa, L.P. Method and compositions for treating fibrous cellulosic materials
US5910622A (en) * 1996-10-29 1999-06-08 Dcv, Inc. Method for treating fibrous cellulosic materials

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019145020A1 (en) * 2018-01-23 2019-08-01 Calik Denim Tekstil San. Ve Tic. A.S. Processes and installations for dyeing synthetic fibers and dyed fibers and fabrics containing said dyed fibers
CN111801461A (en) * 2018-01-23 2020-10-20 卡特科丹宁纺织品贸易有限公司 Method and device for dyeing synthetic fibres, dyed fibres and fabrics containing same
AU2018404838B2 (en) * 2018-01-23 2022-08-11 Calik Denim Tekstil San. Ve Tic. A.S. Processes and installations for dyeing synthetic fibers and dyed fibers and fabrics containing said dyed fibers

Also Published As

Publication number Publication date
DE10107057A1 (en) 2002-08-22
EP1368527A1 (en) 2003-12-10
WO2002064880A1 (en) 2002-08-22

Similar Documents

Publication Publication Date Title
EP1913195B1 (en) Process for introducing vat dyes and chemicals into textiles
US20050011013A1 (en) Production of cotton warp yarns having inverse denim effect
US3824076A (en) Liquid ammonia-caustic dye solution and dyeing therewith
EP1047828B1 (en) Process for dyeing and finishing of cellulosic fabrics
US20040064898A1 (en) Method for improving the colour fastness of textile material made of plastics
CN1330825C (en) Method of dyeing with reactive dye
US5516338A (en) Water-soluble titanium salt-tannin dyes and methods of use thereof
CN111778735A (en) Acid rapid pad dyeing method for chinlon 56 fiber and fabric thereof
US5861045A (en) Method of dyeing textiles
KR20070001279A (en) Method of dyeing or printing cellulosic fibre materials with vattable dyes
KR20140003818A (en) Method for dyeing artificial leather
US3723055A (en) One pass continuous dyeing of polyester/cellulosic fibers a plurality of colors
JP2008133552A (en) Method for dyeing wholly aromatic polyamide fiber, and dyed product of wholly aromatic polyamide fiber dyed by the dyeing method
EP0286597A2 (en) Dyeing and printing fibres
CN110820380A (en) Porous functional fiber dyeing process
JP5230894B2 (en) Composite material dyeing method and composite material dyed by the method
JP4691319B2 (en) Dyeing method for composite fiber materials
KR101985468B1 (en) method for dyeing artificial leather having melange appearance
US1816766A (en) Process of dyeing and printing cellulose esters
US3211755A (en) 1-amino-2-benzoyl-4-hydroxy anthraquinone
US2450767A (en) Vat dyeing of alkali-sensitive fibers, including an acid reduction of the vat dye impregnated fibers
JP3142714B2 (en) Dyeing method of para-aramid fiber
EP1689928A1 (en) Process for dyeing cellulosic fibre materials with at least two vat dyes
KR100569684B1 (en) A method of dyeing for polyamide artificial leather
US1962601A (en) Process for printing animal fibers and product therefrom

Legal Events

Date Code Title Description
AS Assignment

Owner name: CARL FREUDENBERG KG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BARTL, HEIKE;KINSCHERF, CORNELIA;REEL/FRAME:014806/0510;SIGNING DATES FROM 20030630 TO 20030707

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION