GB2079328A - Textile treatment process - Google Patents
Textile treatment process Download PDFInfo
- Publication number
- GB2079328A GB2079328A GB8120159A GB8120159A GB2079328A GB 2079328 A GB2079328 A GB 2079328A GB 8120159 A GB8120159 A GB 8120159A GB 8120159 A GB8120159 A GB 8120159A GB 2079328 A GB2079328 A GB 2079328A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dyeing
- reactive
- amylase
- sizing
- cold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000004753 textile Substances 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000004513 sizing Methods 0.000 claims abstract description 12
- 230000001580 bacterial effect Effects 0.000 claims abstract description 10
- 229920002678 cellulose Polymers 0.000 claims abstract description 9
- 239000001913 cellulose Substances 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims abstract description 7
- 239000000080 wetting agent Substances 0.000 claims abstract description 7
- 238000004045 reactive dyeing Methods 0.000 claims abstract description 6
- 238000004043 dyeing Methods 0.000 claims description 14
- 239000000985 reactive dye Substances 0.000 claims description 12
- 239000004382 Amylase Substances 0.000 claims description 9
- 229920002472 Starch Polymers 0.000 claims description 8
- 239000008107 starch Substances 0.000 claims description 8
- 235000019698 starch Nutrition 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 102000004139 alpha-Amylases Human genes 0.000 abstract 1
- 108090000637 alpha-Amylases Proteins 0.000 abstract 1
- 229940024171 alpha-amylase Drugs 0.000 abstract 1
- 239000004744 fabric Substances 0.000 description 6
- 229920000742 Cotton Polymers 0.000 description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 5
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 239000000975 dye Substances 0.000 description 4
- 102000004190 Enzymes Human genes 0.000 description 3
- 108090000790 Enzymes Proteins 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229940088598 enzyme Drugs 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- FFRBMBIXVSCUFS-UHFFFAOYSA-N 2,4-dinitro-1-naphthol Chemical compound C1=CC=C2C(O)=C([N+]([O-])=O)C=C([N+]([O-])=O)C2=C1 FFRBMBIXVSCUFS-UHFFFAOYSA-N 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 229940025131 amylases Drugs 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- 238000009990 desizing Methods 0.000 description 2
- 230000002255 enzymatic effect Effects 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- INOIOAWTVPHTCJ-UHFFFAOYSA-N 6-acetamido-4-hydroxy-3-[[4-(2-sulfooxyethylsulfonyl)phenyl]diazenyl]naphthalene-2-sulfonic acid Chemical compound CC(=O)NC1=CC=C2C=C(C(N=NC3=CC=C(C=C3)S(=O)(=O)CCOS(O)(=O)=O)=C(O)C2=C1)S(O)(=O)=O INOIOAWTVPHTCJ-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- 102000013142 Amylases Human genes 0.000 description 1
- 108010065511 Amylases Proteins 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 1
- 240000007817 Olea europaea Species 0.000 description 1
- 244000061456 Solanum tuberosum Species 0.000 description 1
- 235000002595 Solanum tuberosum Nutrition 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 229910000318 alkali metal phosphate Inorganic materials 0.000 description 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
- 235000019418 amylase Nutrition 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000009967 direct dyeing Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 235000009973 maize Nutrition 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 235000011118 potassium hydroxide Nutrition 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 229940100486 rice starch Drugs 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000009941 weaving Methods 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
- D06P3/58—Material containing hydroxyl groups
- D06P3/60—Natural or regenerated cellulose
- D06P3/66—Natural or regenerated cellulose using reactive dyes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
- D06L1/12—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using aqueous solvents
- D06L1/14—De-sizing
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
Abstract
By the use of a known bacterial alpha -amylase having significant activity at pH values above 8.5 and temperatures below 30 DEG C, de-sizing and reactive dyeing by the cold dwell process may be carried out simultaneously on cellulose textile materials. The dyed materials have good colour yield and levelness and are not hardened. A non-ionic wetting agent is generally included in the treatment liquor.
Description
SPECIFICATION
Textile treatment process
This invention relates to a process for the simultaneous de-sizing and reactive dyeing of cellulose textiles in the presence of a-amylases.
During the weaving of cotton textiles, the warp threads are normally protected against breakage by application of size, the most commonly used material being starch, for example potato, maize or rice starch. The presence of size on the warp threads can interfere with finishing processes such as bleaching and dyeing, and complete removal of the size is highly desirable.
Starch sizes are only partially soluble in water and cannot be removed from the fabric by simple washing. Accordingly, enzymatic de-sizing processes have been developed in which the starch is broken down into soluble products by the action of enzymes, particularly a- or (3- amylases. cu-Amylase of bacterial origin is preferred on account of its rapid action, and this enzyme is effective in a pH range between pH 4.5 and pH 8.5 (see for example "Enzymatic De-sizing of Textiles" by H. Barfoed in
Process Biochemistry, August 1970, pages 17-19).
It is desirable to combine two separate process steps by de-sizing and dyeing in a single operation, and this is known for direct dyeing of cellulose.
However, when the cellulose fabric is to be dyed by a reactive dye, difficulties arise because underthe strongly alkaline conditions required for fixation of the reactive dye, the activity of the a-amylase is severly reduced and desizing occurs only partially or not at all. Furthermore since the starch size contains hydroxyl groups the reactive dye may become bonded to the size instead of to the cellulose fibres, giving rise to unlevel dyeings, hardening of the material and loss of yield. Thus manufacturers of reactive dyes normally recommend to their customers that all sizes containing hydroxyl groups should be carefully removed before dyeing.
It has now been found that by using a bacterial a-amylase having activity at pH values above 8.5, simultaneous de-sizing and reactive dyeing may be carried out without the disadvantages of unlevel dyeing, hardening and low yield. A further advantage is that de-sizing may be carried out at low temperatures, e.g. 20-30"C, with consequent savings in energy, and may thus be combined with reactive dyeing by the cold dwell process.
Accordingly, the present invention provides a process for the simultaneous de-sizing and reactive dyeing by the cold dwell process of cellulose textile materials at least some of the fibres of which have been treated with a starch-based size, in which the de-sizing agent is a bacterial a-amylase having significant activity at pH values above 8.5 and at temp eratures below 30"C.
Bacterial a-amylase of this type is known and available commercially for example under the trademark "Bactosol TK" or "Bactamyl".
The term cellulose textile materials includes textiles consisting of or containing cellulose fibres. The cellulose may be natural or regenerated cellulose, and is preferably cotton.
The reactive dye and the de-sizing agent may be applied separately to the textile material. However, in a preferred process according to tne invention, the textile material is treated with a liquor which contains a cold-dyeing reactive dye, the bacterial eeamylase described above and an alkaline system.
The treatment liquors preferably applied by padding. The padded goods are then preferably rolled up and rotated slowly at room temperature according to the known cold-dwell process, until sufficient fixation of the dye has been achieved.
The treatment liquor may contain any alkaline system conventional for the fixation of reactive dyes, for example sodium carbonate; sodium bicarbonate; alkali metal phosphates, borates and silicates; caustic soda; caustic potash; alkaline earth metal hydroxides and mixtures thereof. These alkaline materials may be present from the beginning or may be added to the liquor during padding, in controlled manner.
The liquor may also contain conventional wetting agents to improve the penetration of the liquor into thefabric. Anionic wetting agents tend to impairthe activity of the enzyme, however, and for this reason non-ionic wetting agents are preferred. Anti-foaming agents may also be added to the liquor.
The dyestuffs for use in the process of the invention are conventional cold-dyeing reactive dyes as described for example in the Color Index. Preferred reactive dyes are those which give good colour yield under the conditions of the cold dwell process. Such reactive dyes are well known to the dyer.
The quantity of bacterial a-amylase to be added is the same as that normally recommended for desizing, typically from 2-20 gill, preferably 3-15 gll of the treatment bath is used. The preferred treatment temperature is in the range 20-30 C, but higher temperatures up to 40 C may be used with reactive dyes of lower activity.
The following Examples, in which all temperatures are in degrees Centigrade, illustrate the invention:
Example 1
A starch-sized cotton drill fabric was padded at 25"C with a liquor of the following composition:
9 g/l of the dyestuff C.l. Reactive Orange 67
5 gll 'Bactosol TK' bacterial a-amylase
4 gll wetting agent (nonylphenol ethoxylated with 10 moles ethylene oxide)
10 g/l calcined soda.
The hardness of the water used was 1 0 D.H., the pH of the liquor was measured electrometrically as 11.1. After two dippings and squeezings, the final pick-up was 70% by weight. The fabric was rolled up, wrapped in plastic film to prevent evaporation, and rotated slowly for 24 hours at 20 . The fabric was then unrolled, cold rinsed, rinsed at 70 , soaped at the boil with 0.5 g/l of a corboxymethoxylated fatty alcohol polyglycol ether and again cold rinsed. A level golden yellow dyeing with good colour yield
and wet fastness properties was obtained, which was shown by the iodine test to be practically free of starch. The dyed material has a soft handle.
Example 2
The procedure of Example 1 was repeated, except that the dyestuff used was 12 gll C.l. Reactive Red 147. A level deep pink dyeing was obtained, having good colour yield, wet fastness and soft handle and being practically free from starch.
If the soaping bath contains in addition to the detergent 2 g/l soda and 1 mill 35% hydrogen peroxide, and soaping is continued for 15 minutes, a purer pink dyeing is obtained due to the simultaneous bleaching of the cotton.
Examples 3-5
A starch-sized cotton fabric was padded at 25 with liquors af the compositions shown in Table I.
Table I Example No. 3 4 5 Dyestuff used Reactive Yellow Reactive Green Reactive Blue CI. 27 6 182 conc. g/l 30 40 20 Baktosol TK Iiquid(glI) 7 5 5 non-ionic wetting agent (gill) 4 4 4 urea (g/l) 100 200 calcined soda (git) 30 ~ 20 sodium bicarbonate (girl) ~ 20 silicone-based anti-foaming agent (g/l) - 0.1 pH of liquor 11 9.8 10.8 colour of dyeing golden yellow olive green blue The dyeing was carried out as described in Example 1, giving level dyeings of the colours shown in
Table I having good colour yield, wet fastness and handle, and good removal of size.
Claims (4)
1. A process for the simultaneous de-sizing and reactive dyeing by the cold dwell process of cellulose textile materials at least some of the fibres of which have been treated with a starch-based size, in which the de-sizing agent is a bacterial a-amylase having significant activity at pH values above 8.5 and at temperatures below 30 C.
2. A process as claimed in Claim 1 comprising the Step of treating the cellulose textile material with a liquor containing a cold-dyeing reactive dye, a bacterial a-amylase as described in Claim 1 and an alkaline system.
3. A process as claimed in Claim 2 in which the treatment liquor contains a non-ionic wetting agent.
4. A process as claimed in Claim 1 as described in any one of Examples 1-5.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3025188 | 1980-07-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2079328A true GB2079328A (en) | 1982-01-20 |
| GB2079328B GB2079328B (en) | 1984-01-04 |
Family
ID=6106311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8120159A Expired GB2079328B (en) | 1980-07-03 | 1981-06-30 | Textile treatment process |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5742988A (en) |
| FR (1) | FR2486116A1 (en) |
| GB (1) | GB2079328B (en) |
| IT (1) | IT1209873B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998021395A1 (en) * | 1996-11-13 | 1998-05-22 | Clariant International Ltd. | Process for simultaneously desizing and dyeing synthetic fibers and mixtures thereof |
| EP0881324A2 (en) * | 1997-05-26 | 1998-12-02 | Bayer Ag | Process for simultaneously dyeing and removing brightening agents from synthetic fibers |
| WO2000071808A1 (en) * | 1999-05-24 | 2000-11-30 | Novozymes North America, Inc. | Single-bath bioscouring and dyeing of textiles |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1232348A (en) * | 1958-03-28 | 1960-10-07 | Ciba Geigy | Process for dyeing polyhydroxy materials with a fibrous structure |
| DE2644436C3 (en) * | 1976-10-01 | 1980-03-13 | Bayer Ag, 5090 Leverkusen | Process for dyeing cellulosic textile materials by the padding process |
| DE2836516A1 (en) * | 1978-08-21 | 1980-03-06 | Sandoz Ag | Desizing textiles with bacterial alpha-amylase - at room temp. under mildly alkaline conditions |
-
1981
- 1981-06-26 IT IT8148775A patent/IT1209873B/en active
- 1981-06-26 FR FR8112799A patent/FR2486116A1/en active Granted
- 1981-06-30 GB GB8120159A patent/GB2079328B/en not_active Expired
- 1981-07-02 JP JP56102358A patent/JPS5742988A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998021395A1 (en) * | 1996-11-13 | 1998-05-22 | Clariant International Ltd. | Process for simultaneously desizing and dyeing synthetic fibers and mixtures thereof |
| EP0881324A2 (en) * | 1997-05-26 | 1998-12-02 | Bayer Ag | Process for simultaneously dyeing and removing brightening agents from synthetic fibers |
| EP0881324A3 (en) * | 1997-05-26 | 1999-12-01 | Bayer Ag | Process for simultaneously dyeing and removing brightening agents from synthetic fibers |
| US6099594A (en) * | 1997-05-26 | 2000-08-08 | Bayer Aktiengesellschaft | Simultaneous finish-stripping and dyeing of synthetic fibers |
| WO2000071808A1 (en) * | 1999-05-24 | 2000-11-30 | Novozymes North America, Inc. | Single-bath bioscouring and dyeing of textiles |
| US6544297B1 (en) | 1999-05-24 | 2003-04-08 | Novozymes, A/S | Single-bath biopreparation and dyeing of textiles |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2486116B1 (en) | 1983-02-25 |
| IT8148775A0 (en) | 1981-06-26 |
| JPS5742988A (en) | 1982-03-10 |
| GB2079328B (en) | 1984-01-04 |
| IT1209873B (en) | 1989-08-30 |
| FR2486116A1 (en) | 1982-01-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |