GB2322142A - Lyocell fabric treatment - Google Patents
Lyocell fabric treatment Download PDFInfo
- Publication number
- GB2322142A GB2322142A GB9703383A GB9703383A GB2322142A GB 2322142 A GB2322142 A GB 2322142A GB 9703383 A GB9703383 A GB 9703383A GB 9703383 A GB9703383 A GB 9703383A GB 2322142 A GB2322142 A GB 2322142A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fabric
- resin
- sodium hydroxide
- lyocell
- textile
- 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.)
- Withdrawn
Links
- 239000004744 fabric Substances 0.000 title claims abstract description 53
- 229920000433 Lyocell Polymers 0.000 title claims abstract description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 66
- 239000011347 resin Substances 0.000 claims abstract description 33
- 229920005989 resin Polymers 0.000 claims abstract description 33
- 239000004753 textile Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 12
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 238000004043 dyeing Methods 0.000 claims description 7
- 238000005299 abrasion Methods 0.000 abstract description 3
- 206010061592 cardiac fibrillation Diseases 0.000 abstract description 3
- 230000002600 fibrillogenic effect Effects 0.000 abstract description 3
- ZEYUSQVGRCPBPG-UHFFFAOYSA-N 4,5-dihydroxy-1,3-bis(hydroxymethyl)imidazolidin-2-one Chemical compound OCN1C(O)C(O)N(CO)C1=O ZEYUSQVGRCPBPG-UHFFFAOYSA-N 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- RTLULCVBFCRQKI-UHFFFAOYSA-N 1-amino-4-[3-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-4-sulfoanilino]-9,10-dioxoanthracene-2-sulfonic acid Chemical compound C1=2C(=O)C3=CC=CC=C3C(=O)C=2C(N)=C(S(O)(=O)=O)C=C1NC(C=1)=CC=C(S(O)(=O)=O)C=1NC1=NC(Cl)=NC(Cl)=N1 RTLULCVBFCRQKI-UHFFFAOYSA-N 0.000 description 2
- LFTLOKWAGJYHHR-UHFFFAOYSA-N N-methylmorpholine N-oxide Chemical compound CN1(=O)CCOCC1 LFTLOKWAGJYHHR-UHFFFAOYSA-N 0.000 description 2
- 239000003377 acid catalyst Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- LGJMYGMNWHYGCB-UHFFFAOYSA-N 4,5-dihydroxy-1,3-dimethylimidazolidin-2-one Chemical compound CN1C(O)C(O)N(C)C1=O LGJMYGMNWHYGCB-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010016 exhaust dyeing Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Substances O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- FJQXCDYVZAHXNS-UHFFFAOYSA-N methadone hydrochloride Chemical compound Cl.C=1C=CC=CC=1C(CC(C)N(C)C)(C(=O)CC)C1=CC=CC=C1 FJQXCDYVZAHXNS-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- -1 tertiary amine N-oxides Chemical class 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
- D06M15/423—Amino-aldehyde resins
-
- 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
- D06P1/44—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 insoluble pigments or auxiliary substances, e.g. binders
- D06P1/673—Inorganic compounds
- D06P1/67333—Salts or hydroxides
- D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Lyocell fabric finished with a textile resin may be treated with aqueous sodium hydroxide, for example of concentration 10 to 200 g/l, in order to confer increased dyeability, fibrillation resistance, crease resistance and/or abrasion resistance on the fabric. The treatment with sodium hydroxide may conveniently be performed at elevated temperature, for example 40-90‹C, on fabric in rope form.
Description
FABRIC TREATMENT
This invention relates to methods of processing and dyeing lyocell fabrics.
Lyocell fibres are known. They are cellulosic fibres made by dissolution of cellulose in an organic solvent without formation of a chemical derivative of the cellulose, followed by extrusion into and precipitation in a coagulating bath. The organic solvent may be a mixture of organic chemical and water. Preferred organic solvents include a number of tertiary amine N-oxides, in particular aqueous N-methylmorpholine N-oxide (NMMO) . As the terms are used herein, a lyocell yarn is a yarn which contains or consists of lyocell fibres; and a lyocell fabric is a fabric which contains or consists of lyocell yarns.
Resination is a known process in which a textile resin is applied to a textile and cured so as to react with and crosslink the textile, in order to confer upon it properties such as crease- and shrink-resistance. It is described for example in an article entitled "Textile Resins" in
Encyclopedia of Polymer Science and Engineering, Volume 16 (Wiley Interscience, 1989), pages 682-710. The classes of textile resins suitable for application to cellulosic textile fabrics include N-methylol resins such as 1,3-dimethylol-4,5-dihydroxyethyleneurea (DMDHEU).
According to the invention there is provided a method of processing a lyocell fabric, characterised in that it includes the steps of: (1) applying a textile resin to the fabric and curing
the resin to fix the resin on the fabric; and
(2) applying to the fabric an aqueous solution of
sodium hydroxide.
The textile resin may be applied to the fabric and cured in any convenient conventional manner. The textile resin is preferably an N-methylol resin such as DMDHEU. An
N-methylol resin is preferably used in conjunction with an acid catalyst to assist the curing reaction. The resin may be applied to the fabric from an aqueous system containing from 10 to 150 grams per litre of resin. Curing may be effected by allowing the fabric to which the resin has been applied to stand at ambient temperature, but it is preferably accelerated by the application of heat. For example, the fabric may be dried and briefly heated at a temperature above 1000C, preferably in the range from 150 to 1800C, to effect curing. The amount of resin fixed on the fabric after curing is preferably in the range from 1 to 5, more preferably from 3 to 5, percent by weight based on the weight of the treated fabric. The textile resin is preferably applied to and cured on fabric in open width (i.e. fabric extended in both the lengthwise and the widthwise directions).
The aqueous solution of sodium hydroxide may contain from 10 to 200 grams per litre of sodium hydroxide. It may be applied to the fabric at a temperature in the range from 0 to 800C. It has been found that, within the specified ranges, lower concentrations may be preferred at higher temperatures and vice versa. Furthermore, it is generally advantageous to utilise more concentrated solutions of sodium hydroxide when the fabric contains higher levels of fixed resin.
According to a particularly advantageous embodiment of the invention, an aqueous solution containing from 30 to 100, preferably from 60 to 100, grams per litre sodium hydroxide is applied to the fabric at a temperature in the range from 40 to 90, preferably from 50 to 80, OC. In this embodiment, the solution of sodium hydroxide is preferably applied to the fabric whilst the latter is in rope form, for example by use of a jet-treatment machine. The concentration of sodium hydroxide expressed in grams per litre is preferably at least twenty times the amount of resin fixed on the fibre expressed in percent by weight based on the weight of the treated fabric.
Further to this embodiment, the fabric may be dyed in rope form after completion of the sodium hydroxide treatment in the same machine as used for the sodium hydroxide treatment. This has advantages of simplicity and economy over processes which require the use of dedicated equipment for each of the sodium hydroxide treatment and dyeing steps.
Accordingly, the invention further provides a method of processing and dyeing a lyocell fabric, characterised in that it includes the steps of: (1) applying a textile resin to the fabric and curing
the resin to fix the resin on the fabric, the
fabric being maintained in open width throughout;
(2) applying to the fabric an aqueous solution of
sodium hydroxide; and
(3) dyeing the fabric, the fabric being maintained in
rope form during steps (2) and (3).
The method of the invention can be used to provide fabrics which resist fibrillation during wet processing, resist creasing and wrinkling, resist abrasion and/or have increased dyeability.
The invention is illustrated by the following Examples, in which parts and proportions are by weight unless otherwise specified. The samples whose reference codes contain an asterisk were comparative, not according to the invention.
Example 1
Samples of a woven fabric of Tencel (2:1 twill, 180 g/m2) were resinated using varying levels of the textile resin Arkofix NZF (a zero-formaldehyde resin), as described below. A solution containing Arkofix NZF, magnesium chloride (acid catalyst) (25% based on the amount of Arkofix NZF),
Nekanil LN (wetting agent) (1 g/l) and acetic acid (0.5 g/l) was padded onto the fabric in open width to give 80W pick-up. The fabric was then dried and heated at 1500C for 1 minute to cure the resin onto the fabric. The samples were then padded with aqueous sodium hydroxide (200 g/l) at room temperature and rinsed free of alkali in hot and cold water.
They were then dyed with reactive dyestuffs (Procion HE series) using a laboratory rotodyer (comprises metal/plastic tubes clamped to a rotating spindle in a heated water bath); 5 g fabric samples were dyed in 100 ml dye liquor at 800C using the exhaust dyeing procedure recommended by the dyestuff manufacturer. The relative dyeability of the samples was assessed by measurement of Q-value, with the results shown in Table 1:
Table 1
Ref. Arkofix NZF NaOH Q value
concn. g/l treatment 1A* Not used No 100
1B* 70 No 50 1C* 100 No 32
1D* 150 No 24 1Ew Not used Yes 241
1F 70 Yes 361
1G 100 Yes 358
1H 150 Yes 378
Q-value is the ratio of the integrated K/S values measured using a reflectance spectrophotometer over the range from 400 to 700 nm of the sample to be tested and of a control sample, multiplied by 100. Higher Q values indicate increased dyeability.
TENCEL is a Trade Mark of Courtaulds Fibres (Holdings)
Limited. ARKOFIX NZF is a Trade Mark of Hoechst AG. NEKANIL
LN is a Trade Mark of BASF AG. PROCION HE is a Trade Mark of Zeneca plc.
Example 2
Example 1 was repeated, except that a single concentration of Arkofix NZF was employed and that the concentration of sodium hydroxide was varied. The results shown in Table 2 were obtained:
Table 2
Ref. Arkofix NZF NaOH concn. Q value
concn. g/l g/l
2A* Not used Not used 100
2B 150 10 17
2C 150 50 27
2D 150 100 174
2E 150 150 198
The samples were assessed for protection against fibrillation by subjecting them to ten domestic wash (40 C) and tumble dry cycles, after which all of samples 2B to 2E still exhibited a clean surface but sample 2A did not.
Example 3
A solution containing Arkofix NZF (150 g/l) and magnesium chloride (37.5 g/l) was padded at ambient temperature onto samples of the fabric described in Example 1. The samples were then dried at 1100C and heated at 1500C for 1 minute to cure the resin. Each sample was then placed in a laboratory rotodyer together with aqueous sodium hydroxide (various concentrations; liquor to goods ratio 20:1) and heated at 800C for 60 min. The samples were then rinsed in cold water, rinsed in 800C water, neutralised with acetic acid (1 g/l), rinsed in 800C water and rinsed in cold water. The samples were then dyed as described in Example 1.
Comparative samples were prepared in similar manner, but omitting the resin finishing step. The results shown in
Table 3 were obtained:
Table 3
Ref. Arkofix NZF NaOH concn. Q-value Martindale Break load Extension% concn. g11 gXI abrasion rev. cN/tex Warp Weft Warp Weft 3A* Not used Not used 100 14000 558 399 19.1 13.9 3B* Not used 30 139 13300 445 344 20.0 13.8 3C* Not used 60 147 19800 527 348 24.7 14.3 3D* Not used 100 164 17300 479 394 22.5 15.4 3E* Not used 130 180 14000 392 316 27.3 15.4 3F* Not used 160 174 13000 341 313 31.3 19.8 3G* Not used 200 141 18700 29X 323 27.0 15.8 3M* 150 Not used 30 13700 511 403 18.3 14.4 150 30 76 15300 561 358 20.8 13.1 3J 150 60 135 20000 454 421 21.S 14.2 3K 150 100 175 23300 502 348 25.0 15.6 3L 150 130 227 22000 363 355 30.9 17.0 3M 150 160 230 32500 349 379 29.6 17.9 3N 150 200 224 23300 349 333 27.9 16.3
Claims (5)
1. A method of processing a lyocell fabric, characterised in that it includes the steps of:
(1) applying a textile resin to the fabric and curing
the resin to fix the resin on the fabric; and
(2) applying to the fabric an aqueous solution of
sodium hydroxide.
2. A method according to claim 1, further characterised in that the aqueous solution of sodium hydroxide is of concentration in the range from 30 to 100 grams per litre and of temperature in the range from 40 to 900C.
3. A method according to claim 2, further characterised in that the aqueous solution is applied to the fabric in rope form.
4. A method according to claim 3, further characterised in that it additionally includes the step of:
(3) dyeing the fabric in rope form.
5. A method of processing and dyeing a lyocell fabric, characterised in that it includes the steps of:
(1) applying a textile resin to the fabric and curing
the resin to fix the resin on the fabric, the
fabric being maintained in open width throughout;
(2) applying to the fabric an aqueous solution of
sodium hydroxide; and
(3) dyeing the fabric, the fabric being maintained in
rope form during steps (2) and (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9703383A GB2322142A (en) | 1997-02-18 | 1997-02-18 | Lyocell fabric treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9703383A GB2322142A (en) | 1997-02-18 | 1997-02-18 | Lyocell fabric treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9703383D0 GB9703383D0 (en) | 1997-04-09 |
| GB2322142A true GB2322142A (en) | 1998-08-19 |
Family
ID=10807901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9703383A Withdrawn GB2322142A (en) | 1997-02-18 | 1997-02-18 | Lyocell fabric treatment |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2322142A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002059416A2 (en) * | 2001-01-24 | 2002-08-01 | Tencel Limited | Production of dyed lyocell garments |
| WO2014100842A1 (en) * | 2012-12-27 | 2014-07-03 | Lenzing Ag | Non-fibrillating flame resistant cellulosic fabric, its use and method for producing the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997023668A1 (en) * | 1995-12-21 | 1997-07-03 | Courtaulds Fibres (Holdings) Limited | Manufacture of cellulosic articles |
| WO1997045574A1 (en) * | 1996-05-30 | 1997-12-04 | Courtaulds Fibres (Holdings) Limited | Fibre manufacture |
-
1997
- 1997-02-18 GB GB9703383A patent/GB2322142A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997023668A1 (en) * | 1995-12-21 | 1997-07-03 | Courtaulds Fibres (Holdings) Limited | Manufacture of cellulosic articles |
| WO1997045574A1 (en) * | 1996-05-30 | 1997-12-04 | Courtaulds Fibres (Holdings) Limited | Fibre manufacture |
Non-Patent Citations (1)
| Title |
|---|
| WPI Abstract Acc. No. 98-145639/199813 and WO98/05815A1 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002059416A2 (en) * | 2001-01-24 | 2002-08-01 | Tencel Limited | Production of dyed lyocell garments |
| WO2002059416A3 (en) * | 2001-01-24 | 2003-09-25 | Tencel Ltd | Production of dyed lyocell garments |
| US6949126B2 (en) | 2001-01-24 | 2005-09-27 | Lenzing Fibers Limited | Production of dyed lyocell garments |
| WO2014100842A1 (en) * | 2012-12-27 | 2014-07-03 | Lenzing Ag | Non-fibrillating flame resistant cellulosic fabric, its use and method for producing the same |
| AT513761A1 (en) * | 2012-12-27 | 2014-07-15 | Chemiefaser Lenzing Ag | Non-fibrillating, flame retardant cellulosic sheet, its use and method of making the same |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9703383D0 (en) | 1997-04-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |