US20050011014A1 - Through-dyeing of cotton warp yarns with indigo - Google Patents
Through-dyeing of cotton warp yarns with indigo Download PDFInfo
- Publication number
- US20050011014A1 US20050011014A1 US10/889,381 US88938104A US2005011014A1 US 20050011014 A1 US20050011014 A1 US 20050011014A1 US 88938104 A US88938104 A US 88938104A US 2005011014 A1 US2005011014 A1 US 2005011014A1
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- US
- United States
- Prior art keywords
- indigo
- dyeing
- process according
- wetting agent
- dyed
- 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
Links
- 235000000177 Indigofera tinctoria Nutrition 0.000 title claims abstract description 45
- 229940097275 indigo Drugs 0.000 title claims abstract description 45
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 238000004043 dyeing Methods 0.000 title claims abstract description 34
- 229920000742 Cotton Polymers 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 35
- 239000000080 wetting agent Substances 0.000 claims description 14
- 239000004753 textile Substances 0.000 claims description 8
- VIFKLIUAPGUEBV-UHFFFAOYSA-N 2-(3-hydroxy-1h-indol-2-yl)-1h-indol-3-ol Chemical compound N1C2=CC=CC=C2C(O)=C1C1=C(O)C2=CC=CC=C2N1 VIFKLIUAPGUEBV-UHFFFAOYSA-N 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- -1 alkyl phosphate Chemical compound 0.000 claims description 4
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- 239000010452 phosphate Substances 0.000 claims description 3
- 150000003839 salts Chemical group 0.000 claims description 3
- 238000009903 catalytic hydrogenation reaction Methods 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 239000004215 Carbon black (E152) Substances 0.000 claims 1
- 125000000373 fatty alcohol group Chemical group 0.000 claims 1
- 239000012188 paraffin wax Substances 0.000 claims 1
- GRWZHXKQBITJKP-UHFFFAOYSA-L dithionite(2-) Chemical compound [O-]S(=O)S([O-])=O GRWZHXKQBITJKP-UHFFFAOYSA-L 0.000 description 7
- 239000000975 dye Substances 0.000 description 4
- 150000002191 fatty alcohols Chemical class 0.000 description 4
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000008103 glucose Substances 0.000 description 3
- 235000021317 phosphate Nutrition 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical compound OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 2
- GRWZHXKQBITJKP-UHFFFAOYSA-N dithionous acid Chemical compound OS(=O)S(O)=O GRWZHXKQBITJKP-UHFFFAOYSA-N 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- XLSMFKSTNGKWQX-UHFFFAOYSA-N hydroxyacetone Chemical compound CC(=O)CO XLSMFKSTNGKWQX-UHFFFAOYSA-N 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- PGYZAKRTYUHXRA-UHFFFAOYSA-N 2,10-dinitro-12h-[1,4]benzothiazino[3,2-b]phenothiazin-3-one Chemical compound S1C2=CC(=O)C([N+]([O-])=O)=CC2=NC2=C1C=C1SC3=CC=C([N+](=O)[O-])C=C3NC1=C2 PGYZAKRTYUHXRA-UHFFFAOYSA-N 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 229920002334 Spandex Polymers 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010014 continuous dyeing Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000008262 pumice Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 1
- 239000000988 sulfur dye Substances 0.000 description 1
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
-
- 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
- D06P3/58—Material containing hydroxyl groups
- D06P3/60—Natural or regenerated cellulose
- D06P3/6025—Natural or regenerated cellulose 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
- 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
- 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
- D06P1/228—Indigo
Definitions
- the present invention concerns a process for through-dyeing of cotton warp yarns with indigo and also textile articles comprising thus dyed cotton warp yarns.
- Denim refers to a relatively coarse woven cotton fabric which was originally used for robust workwear, but today is used particularly for manufacturing fashionable jeans articles.
- the warp yarns needed to produce denim can be dyed with indigo or else with sulfur dyes, especially sulfur black, although dyeing to blue with indigo is greatly predominant.
- the warp yarn is dyed with indigo as a rope or as a warp yarn sheet on specific dyeing ranges which consist of a combination of one or more troughs with squeeze rolls and a subsequent skying sector.
- the reduced dye is applied in the troughs and oxidized in the skying sector (see for example Technical Information TI/T 017 from BASF AG dated June 1995, title: Continuous dyeing with indigo).
- the dyeing is typically carried out in a dyebath at room temperature or slightly elevated temperatures of about 20-35° C., a pH of about 10.5 to 14 and an indigo concentration of about 0.5 to 10 g/l. Wetting agents in a concentration of about 0.1 to 5 g/l can be used as well.
- a redox potential in the dyebath is maintained by using an excess of hydrosulfite reducing agent in amounts of about 0.1 to 5 g/l.
- the yarn contact time with the dyebath is generally 8 to 30 seconds per pass.
- Dyeing in multiple passes i.e., the repeated application of dye from the dyebath by dipping with subsequent squeezeoff in the dyeing trough and the following skying, makes it possible to achieve deeper shades (see for example ITB Veredlung 2/90, title: Indigo-Färberei: Maschinenn-und maschinentechnischeinfringement, author: Dipl. Ing. L. Haas).
- German Patent Application DE 196 29 985 describes single-pass dyeing wherein, to overcome the low affinity of indigo, the dyebath additionally has added to it salt in the form of sodium chloride in order that an electrolyte concentration of 200 to 350 g/l may be set.
- Ring dyeing makes it possible to endow made-up denim articles with a high-contrast appearance in particular washing and/or bleaching processes through a wash-down of the initially dark blue fabric.
- An example is the familiar stone-wash effect, which is achieved by washing the made-up article with enzymes and pumice stones.
- the dyeing processes required have to be economical in that they should not require additional cost and inconvenience on the part of the dyer, but should be simple to carry out, ideally in a dyer's existing dyeing equipment.
- the present invention then, provides such a process.
- the invention relates to a process for through-dyeing of cotton warp yarns with indigo in an indigo dyeing range, which comprises dyeing in one pass at a dyeing temperature of 30 to 90° C. and an indigo concentration of 5-500 g/l.
- An indigo dyeing range in the realm of the present invention is a range which consists of one dyeing trough or a combination of multiple dyeing troughs with squeeze rolls and subsequent skying sectors (see for example ITB Veredlung 2/90, title: Indigo-Färberei: Maschinens-und maschinentechnischeterrorism, author: Dipl. Ing. L. Haas).
- Indigo is preferably used in amounts of 5-500 g/l and more preferably in amounts of 10 to 50 g/l.
- pre-reduced indigo it is particularly advantageous to use pre-reduced indigo to carry out the process of the invention.
- the pre-reduced indigo used is ideally produced from indigo without use of reducing agent, such as sodium dithionite for example, but by catalytic hydrogenation. It is most advantageous to use indigo in the form of a leuco indigo solution as described for example in EP 1 097 184 B1 and offered on the market by DyStar Textilmaschine GmbH & Co. Kunststoff KG.
- hydrosulfite excess of 0.1 to 5 g/l and more preferably 0.2 to 2 g/l.
- suitable reducing agents for example glucose or hydroxyacetone, or else combinations of various reducing agents such as glucose/hydrosulfite.
- the temperature at which the process of the invention is carried out is preferably 30-90° C. and more preferably in the range from 50 to 70° C.
- the process of the invention can be carried out with or without wetting agent, but preferably it is carried out in the presence of a wetting agent.
- suitable wetting agents are anionic wetting agents, for example fatty alcohol ethoxylate, alkanesulfonate, sulfosuccinate, alkyl phosphate or paraffins and hydrocarbons or else mixtures thereof, and most preference is given to using salts of phosphoric esters.
- the amounts in which the wetting agents mentioned are used are preferably in the range from 5 to 50 g/l and more preferably in the range from 10 to 25 g/l.
- Dyebath pH in the process of the invention is preferably in the range from 10.5 to 13.5.
- the process of the invention surprisingly leads in just one pass to yarns which are through-dyed, i.e., dyed in the core as well in the surface region.
- the contact time with the dyebath is preferably 8 to 30 seconds and more preferably 15 to 20 seconds.
- the subsequent skying takes preferably 90 to 130 seconds and more preferably 100 to 1 10 seconds.
- the process of the invention ends after just one pass. This is because this leaves the dyer with the option of using the other dyeing troughs of his indigo dyeing range which are not needed for dyeing to subject the dyed cotton warp yarn to further treatment steps. Alternatively, the dyer also has the option of course of realizing more economical, small-scale ranges.
- the process of the invention is particularly surprising because the properties of indigo did not suggest that the use of high indigo levels leads to a satisfactory dyed result. On the contrary, it had hitherto been assumed that the large indigo dyeing ranges of the prior art are indispensable for this purpose.
- the core-dyed cotton warp yarns dyed in the core by the process of the invention can be subjected to further treatment steps to obtain certain effects and then be conventionally woven up and processed into textile articles for the consumer, such as garments in particular.
- the dyed cotton warp yarns can be processed into textile articles without further treatment and, if desired, only then to undertake further treatment steps, i.e., to modify the already made-up merchandise.
- the cotton warp yarns dyed by the process of the invention can of course also be woven up, and further processed into articles for the consumer, in admixture with further materials.
- Blends with elastane may be mentioned by way of example.
- the present invention also provides textile articles comprising cotton warp yarns dyed by the process of the invention.
- textile articles are denim fabrics which have not been made up, but in particular garments such as pants, skirts, shirts, jackets, etc. or other textile type articles.
- a commercially available unpretreated dry cotton warp yarn was dyed from a dyeing liquor of the following composition:
- the pH of the liquor was 13.
- the yarn was dyed at 50° C. in the course of a dip time of 25 seconds. The subsequent skying took 120 seconds.
- a through-dyed yarn having a high level of applied indigo was obtained.
- a dye analysis of the dyed yarn revealed a level of 5.8%.
- a commercially available unpretreated dry cotton warp yarn (yarn count: 8.5 Ne, 24 per rope) was dyed from a dyeing liquor of the following composition:
- the pH of the liquor was 12.6.
- the yarn was dyed at 60° C. in the course of a dip time of 10 seconds. The subsequent skying took 120 seconds. The yarn throughput was 12.61 kg/min.
- a through-dyed yarn having a high level of applied indigo was obtained.
- a dye analysis of the dyed yarn revealed a level of 6%.
Abstract
The present invention relates to a process for through-dyeing of cotton warp yarns with indigo in an indigo dyeing range, which comprises dyeing in one pass at a dyeing temperature of 30 to 90° C. and an indigo concentration of 10-60 g/l.
Description
- The present invention concerns a process for through-dyeing of cotton warp yarns with indigo and also textile articles comprising thus dyed cotton warp yarns.
- Denim refers to a relatively coarse woven cotton fabric which was originally used for robust workwear, but today is used particularly for manufacturing fashionable jeans articles. The warp yarns needed to produce denim can be dyed with indigo or else with sulfur dyes, especially sulfur black, although dyeing to blue with indigo is greatly predominant.
- Traditionally, the warp yarn is dyed with indigo as a rope or as a warp yarn sheet on specific dyeing ranges which consist of a combination of one or more troughs with squeeze rolls and a subsequent skying sector. The reduced dye is applied in the troughs and oxidized in the skying sector (see for example Technical Information TI/T 017 from BASF AG dated June 1995, title: Continuous dyeing with indigo). The dyeing is typically carried out in a dyebath at room temperature or slightly elevated temperatures of about 20-35° C., a pH of about 10.5 to 14 and an indigo concentration of about 0.5 to 10 g/l. Wetting agents in a concentration of about 0.1 to 5 g/l can be used as well. A redox potential in the dyebath is maintained by using an excess of hydrosulfite reducing agent in amounts of about 0.1 to 5 g/l. The yarn contact time with the dyebath is generally 8 to 30 seconds per pass. Dyeing in multiple passes, i.e., the repeated application of dye from the dyebath by dipping with subsequent squeezeoff in the dyeing trough and the following skying, makes it possible to achieve deeper shades (see for example ITB Veredlung 2/90, title: Indigo-Färberei: Verfahrens-und maschinentechnische Lösungen, author: Dipl. Ing. L. Haas).
- German Patent Application DE 196 29 985 describes single-pass dyeing wherein, to overcome the low affinity of indigo, the dyebath additionally has added to it salt in the form of sodium chloride in order that an electrolyte concentration of 200 to 350 g/l may be set.
- These processes all produce a so-called ring dyeing, i.e., the fiber is dyed at the surface only, leaving the interior of the fiber, the core, undyed. Ring dyeing makes it possible to endow made-up denim articles with a high-contrast appearance in particular washing and/or bleaching processes through a wash-down of the initially dark blue fabric. An example is the familiar stone-wash effect, which is achieved by washing the made-up article with enzymes and pumice stones.
- However, there are already signs that future jeans fashion will demand effects which cannot be achieved with ring-dyed denim alone. On the contrary, core-dyed warp yarns have to be available for the development of new articles if these demands are to be met.
- The dyeing processes required have to be economical in that they should not require additional cost and inconvenience on the part of the dyer, but should be simple to carry out, ideally in a dyer's existing dyeing equipment.
- The present invention, then, provides such a process.
- The invention relates to a process for through-dyeing of cotton warp yarns with indigo in an indigo dyeing range, which comprises dyeing in one pass at a dyeing temperature of 30 to 90° C. and an indigo concentration of 5-500 g/l.
- An indigo dyeing range in the realm of the present invention is a range which consists of one dyeing trough or a combination of multiple dyeing troughs with squeeze rolls and subsequent skying sectors (see for example ITB Veredlung 2/90, title: Indigo-Färberei: Verfahrens-und maschinentechnische Lösungen, author: Dipl. Ing. L. Haas).
- Any commercially available indigo may be used. Indigo is preferably used in amounts of 5-500 g/l and more preferably in amounts of 10 to 50 g/l.
- It is particularly advantageous to use pre-reduced indigo to carry out the process of the invention. The pre-reduced indigo used is ideally produced from indigo without use of reducing agent, such as sodium dithionite for example, but by catalytic hydrogenation. It is most advantageous to use indigo in the form of a leuco indigo solution as described for example in EP 1 097 184 B1 and offered on the market by DyStar Textilfarben GmbH & Co. Deutschland KG.
- To stabilize leuco indigo, i.e., to back-reduce leuco indigo which has become oxidized in the dyebath, it is preferable to use a hydrosulfite excess of 0.1 to 5 g/l and more preferably 0.2 to 2 g/l. It will be appreciated that in lieu of the hydrosulfite it is possible to use other suitable reducing agents, for example glucose or hydroxyacetone, or else combinations of various reducing agents such as glucose/hydrosulfite.
- The temperature at which the process of the invention is carried out is preferably 30-90° C. and more preferably in the range from 50 to 70° C.
- The process of the invention can be carried out with or without wetting agent, but preferably it is carried out in the presence of a wetting agent. Examples of suitable wetting agents are anionic wetting agents, for example fatty alcohol ethoxylate, alkanesulfonate, sulfosuccinate, alkyl phosphate or paraffins and hydrocarbons or else mixtures thereof, and most preference is given to using salts of phosphoric esters.
- The amounts in which the wetting agents mentioned are used are preferably in the range from 5 to 50 g/l and more preferably in the range from 10 to 25 g/l.
- Dyebath pH in the process of the invention is preferably in the range from 10.5 to 13.5.
- The process of the invention surprisingly leads in just one pass to yarns which are through-dyed, i.e., dyed in the core as well in the surface region. The contact time with the dyebath is preferably 8 to 30 seconds and more preferably 15 to 20 seconds. The subsequent skying takes preferably 90 to 130 seconds and more preferably 100 to 1 10 seconds.
- It is a particular advantage to the dyer that the process of the invention ends after just one pass. This is because this leaves the dyer with the option of using the other dyeing troughs of his indigo dyeing range which are not needed for dyeing to subject the dyed cotton warp yarn to further treatment steps. Alternatively, the dyer also has the option of course of realizing more economical, small-scale ranges.
- The process of the invention is particularly surprising because the properties of indigo did not suggest that the use of high indigo levels leads to a satisfactory dyed result. On the contrary, it had hitherto been assumed that the large indigo dyeing ranges of the prior art are indispensable for this purpose.
- The core-dyed cotton warp yarns dyed in the core by the process of the invention can be subjected to further treatment steps to obtain certain effects and then be conventionally woven up and processed into textile articles for the consumer, such as garments in particular.
- However, it is also possible for the dyed cotton warp yarns to be processed into textile articles without further treatment and, if desired, only then to undertake further treatment steps, i.e., to modify the already made-up merchandise.
- It is of course similarly possible to subject not only the dyed cotton warp yarns but also the textile articles produced therefrom to further processing steps.
- The cotton warp yarns dyed by the process of the invention can of course also be woven up, and further processed into articles for the consumer, in admixture with further materials. Blends with elastane may be mentioned by way of example.
- The present invention also provides textile articles comprising cotton warp yarns dyed by the process of the invention. Examples of such textile articles are denim fabrics which have not been made up, but in particular garments such as pants, skirts, shirts, jackets, etc. or other textile type articles.
- The examples which follow illustrate the invention. The parts in the table examples are by weight.
- A commercially available unpretreated dry cotton warp yarn was dyed from a dyeing liquor of the following composition:
-
- 20 g/l of indigo as commercially available DyStar Indigo Vat 40% solution
- 2 g/l of hydrosulfite (BASF Hydrosulfit konz.)
- 20 g/l of wetting agent (Primasol NF)
- The pH of the liquor was 13.
- The yarn was dyed at 50° C. in the course of a dip time of 25 seconds. The subsequent skying took 120 seconds.
- This was followed by two rinses with water at 20° C.
- A through-dyed yarn having a high level of applied indigo was obtained. A dye analysis of the dyed yarn revealed a level of 5.8%.
- A commercially available unpretreated dry cotton warp yarn (yarn count: 8.5 Ne, 24 per rope) was dyed from a dyeing liquor of the following composition:
-
- 25 g/l of indigo as commercially available DyStar Indigo Vat 40% solution
- 5 g/l of hydrosulfite (BASF Hydrosulfit konz.)
- 25 g/l of wetting agent (Primasol NF)
- The pH of the liquor was 12.6.
- The yarn was dyed at 60° C. in the course of a dip time of 10 seconds. The subsequent skying took 120 seconds. The yarn throughput was 12.61 kg/min.
- This was followed by two rinses with water at 20° C.
- A through-dyed yarn having a high level of applied indigo was obtained. A dye analysis of the dyed yarn revealed a level of 6%.
- The table examples which follow describe further embodiments of the process of the invention. They are carried out similarly to the abovementioned examples 1 and 2. A through-dyed yarn having a high level of applied indigo is obtained in each case.
Product Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 DyStar Indigo Vat 100 450 200 120 40% solution DyStar Indigo Vat 35 60% grains DyStar Indigo granules 80 Hydrosulfite conc. (BASF) 5 70 1 10 Glucose 10 20 20 2 Fatty alcohol ethoxylate 10 and alkanesulfonate Sulfosuccinate Paraffins, hydrocarbons 30 and fatty alcohol ethoxylate Alkyl phosphate 20 20 10 Fatty alcohol ethoxylate and alkyl phosphates pH 13 11.8 12.8 13 12.4 11.0 Temperature (° C.) 50 80 90 70 50 70 Number of passes 1 1 1 1 1 1
Claims (15)
1. A process for through-dyeing of cotton warp yarns with indigo in an indigo dyeing range, which comprises dyeing in one pass at a dyeing temperature of 30 to 90° C. and an indigo concentration of 5-500 g/l.
2. A process according to claim 1 that utilizes indigo in the form of a solution of leuco indigo.
3. A process according to claim 2 wherein the leuco indigo has been produced from indigo by catalytic hydrogenation.
4. A process according to claim 1 wherein the process is further carried out in the presence of a wetting agent.
5. A process according to claim 4 wherein the wetting agent is used in amounts of 5 to 50 g/l.
6. A textile article comprising cotton warp yarns dyed by the process according to claim 1 .
7. A process according to claim 3 , wherein the process is further carried out in the presence of a wetting agent.
8. A process according to claim 7 , wherein the wetting agent is used in amounts of 10 to 25 g/l.
9. A process according to claim 1 , wherein said indigo concentration is 10-50 g/l.
10. A process according to claim 1 , wherein said indigo is a pre-reduced indigo.
11. A process according to claim 10 , wherein the pre-reduced indigo is produced from an indigo without the use of a reducing agent.
12. A process according to claim 2 , wherein the temperature is from 50 to 70° C.
13. A process according to claim 1 , wherein the dyeing is conducted at a pH from 10.5 to 13.5.
14. A process according to claim 8 , wherein the wetting agent is fatty alcohol ethoxylate, alkanesulfonate, sulfonsuccinate, alkyl phosphate, paraffin, hydrocarbon or mixtures thereof.
15. A process according to claim 8 , wherein the wetting agent is a salt of phosphoric esters.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEDE10332165.9 | 2003-07-15 | ||
DE10332165A DE10332165A1 (en) | 2003-07-15 | 2003-07-15 | Method of dyeing cotton warp yarns with indigo |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050011014A1 true US20050011014A1 (en) | 2005-01-20 |
Family
ID=33461943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/889,381 Abandoned US20050011014A1 (en) | 2003-07-15 | 2004-07-12 | Through-dyeing of cotton warp yarns with indigo |
Country Status (10)
Country | Link |
---|---|
US (1) | US20050011014A1 (en) |
EP (1) | EP1498540A1 (en) |
JP (1) | JP2005036383A (en) |
KR (1) | KR20050008502A (en) |
CN (1) | CN1576453A (en) |
BR (1) | BRPI0402764A (en) |
DE (1) | DE10332165A1 (en) |
MX (1) | MXPA04006795A (en) |
TW (1) | TW200504264A (en) |
ZA (1) | ZA200405539B (en) |
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US8892495B2 (en) | 1991-12-23 | 2014-11-18 | Blanding Hovenweep, Llc | Adaptive pattern recognition based controller apparatus and method and human-interface therefore |
US9535563B2 (en) | 1999-02-01 | 2017-01-03 | Blanding Hovenweep, Llc | Internet appliance system and method |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN103882638A (en) * | 2014-03-18 | 2014-06-25 | 山东万泰创业投资有限公司 | Producing technology for jean bundle-shaped thread super blue dyeing |
CN111793878A (en) * | 2020-07-17 | 2020-10-20 | 洪英豪 | Jean fabric production process |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3457022A (en) * | 1964-12-02 | 1969-07-22 | Cone Mills Corp | Process of dyeing cotton fibers with indigo vat dyes |
US4283194A (en) * | 1979-08-20 | 1981-08-11 | Burlington Industries, Inc. | Brushed stretch denim fabric and process therefor: indigo dyeing |
US4285695A (en) * | 1977-12-14 | 1981-08-25 | Olin Corporation | Process for inhibiting crust formation in reduced dye baths |
US5378246A (en) * | 1993-05-10 | 1995-01-03 | Allegro Natural Dyes, Inc. | Indigo dye process |
US5935273A (en) * | 1997-02-08 | 1999-08-10 | Kruger; Rudolf | Process for continuous dyeing of cellulose-containing yarn with indigo in a single application while controlling the pH value |
US5984980A (en) * | 1996-07-25 | 1999-11-16 | Krueger; Rudolf | Process for continuous dyeing in a single operation of cellulose-containing yarn with indigo |
US6004358A (en) * | 1996-07-16 | 1999-12-21 | Basf Aktiengesellschaft | Batchwise dyeing of cellulosic textile material with indigo by the exhaust method |
US6428581B1 (en) * | 1998-07-13 | 2002-08-06 | Dystar Textilfarben Gmbh & Co. Deutschland Kg | Concentrated leucoindigo solutions |
US6627063B1 (en) * | 1998-11-24 | 2003-09-30 | Walter Marte | Method and apparatus for reducing vat and sulfur dyes |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US4342565A (en) * | 1979-08-20 | 1982-08-03 | Burlington Industries, Inc. | Brushed stretch denim fabric and process therefor |
-
2003
- 2003-07-15 DE DE10332165A patent/DE10332165A1/en not_active Withdrawn
-
2004
- 2004-07-03 EP EP04015732A patent/EP1498540A1/en not_active Withdrawn
- 2004-07-12 US US10/889,381 patent/US20050011014A1/en not_active Abandoned
- 2004-07-13 BR BR0402764-7A patent/BRPI0402764A/en not_active Application Discontinuation
- 2004-07-13 TW TW093120869A patent/TW200504264A/en unknown
- 2004-07-13 ZA ZA200405539A patent/ZA200405539B/en unknown
- 2004-07-13 MX MXPA04006795A patent/MXPA04006795A/en unknown
- 2004-07-13 CN CNA2004100636583A patent/CN1576453A/en active Pending
- 2004-07-14 JP JP2004207803A patent/JP2005036383A/en not_active Withdrawn
- 2004-07-14 KR KR1020040054630A patent/KR20050008502A/en not_active Application Discontinuation
Patent Citations (9)
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US3457022A (en) * | 1964-12-02 | 1969-07-22 | Cone Mills Corp | Process of dyeing cotton fibers with indigo vat dyes |
US4285695A (en) * | 1977-12-14 | 1981-08-25 | Olin Corporation | Process for inhibiting crust formation in reduced dye baths |
US4283194A (en) * | 1979-08-20 | 1981-08-11 | Burlington Industries, Inc. | Brushed stretch denim fabric and process therefor: indigo dyeing |
US5378246A (en) * | 1993-05-10 | 1995-01-03 | Allegro Natural Dyes, Inc. | Indigo dye process |
US6004358A (en) * | 1996-07-16 | 1999-12-21 | Basf Aktiengesellschaft | Batchwise dyeing of cellulosic textile material with indigo by the exhaust method |
US5984980A (en) * | 1996-07-25 | 1999-11-16 | Krueger; Rudolf | Process for continuous dyeing in a single operation of cellulose-containing yarn with indigo |
US5935273A (en) * | 1997-02-08 | 1999-08-10 | Kruger; Rudolf | Process for continuous dyeing of cellulose-containing yarn with indigo in a single application while controlling the pH value |
US6428581B1 (en) * | 1998-07-13 | 2002-08-06 | Dystar Textilfarben Gmbh & Co. Deutschland Kg | Concentrated leucoindigo solutions |
US6627063B1 (en) * | 1998-11-24 | 2003-09-30 | Walter Marte | Method and apparatus for reducing vat and sulfur dyes |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US8892495B2 (en) | 1991-12-23 | 2014-11-18 | Blanding Hovenweep, Llc | Adaptive pattern recognition based controller apparatus and method and human-interface therefore |
US9535563B2 (en) | 1999-02-01 | 2017-01-03 | Blanding Hovenweep, Llc | Internet appliance system and method |
Also Published As
Publication number | Publication date |
---|---|
MXPA04006795A (en) | 2005-06-17 |
TW200504264A (en) | 2005-02-01 |
DE10332165A1 (en) | 2005-02-17 |
KR20050008502A (en) | 2005-01-21 |
BRPI0402764A (en) | 2005-05-24 |
JP2005036383A (en) | 2005-02-10 |
CN1576453A (en) | 2005-02-09 |
ZA200405539B (en) | 2005-03-18 |
EP1498540A1 (en) | 2005-01-19 |
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