EP3748065A1 - Procédé de blanchiment de textiles, produits et utilisations associés - Google Patents
Procédé de blanchiment de textiles, produits et utilisations associés Download PDFInfo
- Publication number
- EP3748065A1 EP3748065A1 EP19178847.0A EP19178847A EP3748065A1 EP 3748065 A1 EP3748065 A1 EP 3748065A1 EP 19178847 A EP19178847 A EP 19178847A EP 3748065 A1 EP3748065 A1 EP 3748065A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bath
- fabric
- minutes
- previous
- amylase
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 106
- 230000008569 process Effects 0.000 title claims abstract description 98
- 239000004744 fabric Substances 0.000 title claims abstract description 53
- 238000004061 bleaching Methods 0.000 title claims abstract description 42
- 102000004190 Enzymes Human genes 0.000 claims abstract description 28
- 108090000790 Enzymes Proteins 0.000 claims abstract description 28
- 239000000126 substance Substances 0.000 claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 49
- 108010059892 Cellulase Proteins 0.000 claims description 30
- 229940088598 enzyme Drugs 0.000 claims description 27
- 229920000742 Cotton Polymers 0.000 claims description 25
- 108010019077 beta-Amylase Proteins 0.000 claims description 15
- 229940106157 cellulase Drugs 0.000 claims description 15
- 108090001060 Lipase Proteins 0.000 claims description 13
- 102000004882 Lipase Human genes 0.000 claims description 13
- 239000004367 Lipase Substances 0.000 claims description 13
- 235000019421 lipase Nutrition 0.000 claims description 13
- 108010087558 pectate lyase Proteins 0.000 claims description 13
- 102000016938 Catalase Human genes 0.000 claims description 12
- 108010053835 Catalase Proteins 0.000 claims description 12
- 230000014759 maintenance of location Effects 0.000 claims description 11
- 150000002978 peroxides Chemical class 0.000 claims description 11
- 239000003352 sequestering agent Substances 0.000 claims description 11
- 239000002270 dispersing agent Substances 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 10
- 239000012190 activator Substances 0.000 claims description 9
- 108090000637 alpha-Amylases Proteins 0.000 claims description 9
- 102000004139 alpha-Amylases Human genes 0.000 claims description 9
- 229940024171 alpha-amylase Drugs 0.000 claims description 9
- 239000000080 wetting agent Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 4
- 238000006911 enzymatic reaction Methods 0.000 claims description 4
- 238000005502 peroxidation Methods 0.000 claims description 4
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical group [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 claims description 3
- 229960001922 sodium perborate Drugs 0.000 claims description 3
- 229940045872 sodium percarbonate Drugs 0.000 claims description 3
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 claims description 3
- 230000004580 weight loss Effects 0.000 claims description 3
- XUJLWPFSUCHPQL-UHFFFAOYSA-N 11-methyldodecan-1-ol Chemical group CC(C)CCCCCCCCCCO XUJLWPFSUCHPQL-UHFFFAOYSA-N 0.000 claims description 2
- 102000004316 Oxidoreductases Human genes 0.000 claims description 2
- 108090000854 Oxidoreductases Proteins 0.000 claims description 2
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical group OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 2
- 238000010792 warming Methods 0.000 claims description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical group [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims 1
- 230000035484 reaction time Effects 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract description 24
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract description 17
- 238000004043 dyeing Methods 0.000 abstract description 13
- 238000009896 oxidative bleaching Methods 0.000 abstract description 13
- 239000004753 textile Substances 0.000 abstract description 13
- 235000011121 sodium hydroxide Nutrition 0.000 abstract description 8
- 241000219146 Gossypium Species 0.000 description 23
- 238000009991 scouring Methods 0.000 description 9
- 230000007613 environmental effect Effects 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000009990 desizing Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical group 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 238000002203 pretreatment Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000002087 whitening effect Effects 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000005708 Sodium hypochlorite Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 241000972773 Aulopiformes Species 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 108010084185 Cellulases Proteins 0.000 description 1
- 102000005575 Cellulases Human genes 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 208000020564 Eye injury Diseases 0.000 description 1
- 108010015776 Glucose oxidase Proteins 0.000 description 1
- 239000004366 Glucose oxidase Substances 0.000 description 1
- 240000002024 Gossypium herbaceum Species 0.000 description 1
- 235000004341 Gossypium herbaceum Nutrition 0.000 description 1
- 235000000177 Indigofera tinctoria Nutrition 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- GLSRFBDXBWZNLH-UHFFFAOYSA-L disodium;2-chloroacetate;2-(4,5-dihydroimidazol-1-yl)ethanol;hydroxide Chemical compound [OH-].[Na+].[Na+].[O-]C(=O)CCl.OCCN1CCN=C1 GLSRFBDXBWZNLH-UHFFFAOYSA-L 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 229940116332 glucose oxidase Drugs 0.000 description 1
- 235000019420 glucose oxidase Nutrition 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 229940097275 indigo Drugs 0.000 description 1
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- -1 manganese salt Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000013386 optimize process Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000006187 pill Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000019515 salmon Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 231100000075 skin burn Toxicity 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 229940096501 sodium cocoamphoacetate Drugs 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- FRPJTGXMTIIFIT-UHFFFAOYSA-N tetraacetylethylenediamine Chemical compound CC(=O)C(N)(C(C)=O)C(N)(C(C)=O)C(C)=O FRPJTGXMTIIFIT-UHFFFAOYSA-N 0.000 description 1
- 231100000925 very toxic Toxicity 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
-
- 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
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
-
- 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
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
- D06L4/12—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen combined with specific additives
-
- 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
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/40—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using enzymes
Definitions
- the present disclosure relates to the field of textile industry and chemistry, namely textile dyeing and a process for fabric bleaching, products and uses thereof.
- the present disclosure describes a process for fabric bleaching using a novel enzyme blend combined with a specifically designed chemical system, which reduces the use of caustic soda and hydrogen peroxide in the conventional oxidative bleaching process, replacing the manipulation of these chemicals.
- the Textile Industry is one of the biggest industries in the world with a current worth of nearly 1.5 trillion USD. Nevertheless, it is also one of the world's top polluting industries, partaking a heavy environmental impact in terms of resource consumption, effluents contamination and textile elimination.
- Water is a finite resource that is quickly becoming scarce and is used at every step of the process both to convey the chemicals used during that step and to wash them out before beginning the next step.
- the water becomes full of chemical additives and is then expelled as wastewater; which in turn pollutes the environment.
- the liquid effluents of the TI have usually a high Chemical Oxygen Demand (COD) and Biochemical Oxygen Demand (BOD), high conductivity and colouring.
- Naturally occurring fibres such as cotton
- colouring materials even after scouring processes and the cause of this colour may be the naturally occurring pigments present in the fibre structure.
- This colour can come from different contaminations occurring during the processing of natural fibres like for example, oils and greases coming from the processing equipment.
- the bleaching process aims to eliminate all coloured contaminants that are on the fibres, as well as the remaining of other contaminants that have resisted to previous pre-treating processes (desizing, scouring, etc.) such as bark remnants of the cotton plant.
- Chlorine is known to be extremely toxic to the environment and to consumers, while sodium hypochlorite is very hazardous to human health due to the etching effect that may cause skin and lungs damage. In its compound form, sodium hypochlorite is also very toxic to aquatic organisms and bacteria.
- Enzymes are protein catalysts produced by living cells that catalyse specific reactions.
- the use of enzymes in textile processes has gained increased interest due to the fact that enzymes are non-toxic, biodegradable and environmentally friendly.
- Document WO0200823386 relates to novel compositions for biobleaching coupled with stone washing of indigo dyed denims comprising a blend of glucose oxidase, catalases and cellulases in the ratio of 1.0:10.0:1.0 along with sugar base, peroxide source and optional adjuvants, wherein the process is carried out at optimized conditions of neutral pH (6.5 - 7.0) and a temperature of 55 °C.
- Document CN103266495 discloses a method for pre-treating a cotton-polyester blended fabric with a biological enzyme.
- the method comprises the steps of scouring and bleaching, washing and drying and is characterized in that the scouring and bleaching step comprises the sub-step of adding the cotton-polyester blended fabric to a scouring and bleaching solution to be scoured and bleached, wherein the mass ratio of the cotton-polyester blended fabric to the scouring and bleaching solution is (1:10)-(1:20); the temperature is controlled to be 50-60 °C; the treatment time is 30-90 minutes; and the scouring and bleaching solution comprises the following components by weight percent: 2.5-3.5% of compound biological enzyme, 5-10% of hydrogen peroxide, 1-2% of tetra acetyl ethylene diamine, 0.1-0.3% of sodium cocoamphoacetate, 0.1-0.3% of ferrous sulfate and the balance of water.
- the method has the advantages of desizing and bleaching in one bath, mild treatment
- the process of the present disclosure is a simplified treatment that results in a fabric that retains the characteristics of cotton and shows a better handle and hydrophilicity and a cleaner and smoother surface than the conventionally bleached cotton.
- the process of the present disclosure decreases the chemical load used, namely it eliminates the use of NaOH and includes more sustainable versions of the auxiliary chemicals used.
- An aspect of the present disclosure relates to process for fabric bleaching comprising the following steps:
- the process may further comprise the following steps:
- the process may further comprise the following steps:
- the process may further comprise the following steps:
- the process may further comprise the following steps: adding a catalase solution to the third bath maintaining the first temperature of the bath during the catalase reaction.
- the first temperature of the bath is from 40 - 70 °C, preferably 60 °C.
- the pH of the first bath is from pH 5.5- 8.
- the duration of the enzymatic reaction is at least 30 minutes, preferably from 30 minutes to 1 hour, more preferably 45 minutes.
- the second temperature of the first bath is from 75-90 °C, preferably 80 °C.
- the duration of the peroxidation reaction is at least 5 minutes, preferably from 5-20 minutes, more preferably 10 minutes.
- the temperature of the second bath is from 60-90 °C, preferably 70 °C.
- the duration of the washing is at least 5 minutes, preferably from 5-20 minutes, more preferably 10 minutes.
- the temperature of the third bath is from 25-60 °C, preferably 40 °C.
- the duration of the washing with sequestering and dispersing agent is at least 5 minutes, preferably from 5-15 minutes.
- the duration of the catalase reaction is at least 10 minutes, preferably from 10-30 minutes.
- the blend of enzymes is:
- the blend of enzymes further comprises oxidoreductase.
- the liquor ratio between fabric: water is from 1:5 -1:40; preferably 1:10 -1:20.
- the wetting agent concentration is from 0,5 - 5 % (wt/wt), preferably 1 - 2 %(wt/wt).
- the enzyme blend concentration is from 0,5 - 5 % (wt/wt), preferably 1 - 2 %(wt/wt).
- the peroxide donor concentration is from 5 - 50 g/l, preferably 10 - 15 g/l.
- the bleaching activator concentration is from 0.5 - 5 g/l, preferably 1 - 3 g/l.
- the sequestering and dispersing agent concentration is from 0.5 - 3 g/l, preferably 0.5 -1 g/l.
- the catalase concentration is from 0.2 - 2 g/l.
- the peroxide donor is sodium percarbonate, sodium perborate or a mixture thereof.
- the wetting agent is ethoxylated isotridecanol.
- the bleaching activator is a manganese salt
- the sequestering and dispersing agent is 3-hydroxy-3-carboxy-1,5-pentanedioic acid.
- Another aspect of the present disclosure relates to a bleached fabric obtainable by the process described in the present disclosure wherein the weight loss is inferior to the standard process, being less than 4.5%.
- the fabric is a natural yarn fabric, preferably a cotton fabric.
- Another aspect of the present disclosure also relates to an article comprising the fabric described in the present disclosure.
- the process of the present disclosure is an alternative pre-treatment process that accomplishes fabric whitening using less water, less energy and less harsh chemicals. It minimizes environmental impact of one of the more universal cotton processing steps, the oxidative bleaching,
- the process of the present disclosure is a simplified treatment that results in a fabric that retains the characteristics of cotton and shows a better handle and hydrophilicity and a cleaner and smoother surface than the conventionally bleached cotton.
- the present disclosure is used to bleach all 100% cotton articles used as starting material for the Textile Industry.
- process of the present disclosure may comprise the following steps:
- the bleaching process is reduced from 148 min with the conventional procedure to 135 min with the process of the present disclosure, meaning a reduction of approximately 9% in process time.
- Table 1 Comparison between 100% cotton knitted fabric bleached according to the conventional method and to the process of the present disclosure Bleaching process of figure 1 (30 min at 100°C) Process of the present disclosure as described in figure 2 HANDLE Slightly harsh handle Softer and smoother handle WHITE LEVEL (WI-BERG) 74.97 67.73 WEIGHT LOSS (%) 5.1% 4.5%
- Table 2 Results of effluent analysis after conventional bleaching and process of the present disclosure by exhaustion.
- the overall difference of colour can be calculated by spectrophotometric reading and it is expressed by the DE value, obtained based on the comparison between samples that went through the conventional bleaching and samples treated by process of the present disclosure.
- Standard values for colour tolerance accepted amongst the industry players are usually ⁇ 0.5.
- the spectrophotometric analysis of the dyed samples shows DE values between 0.52 and 0.84, which can be attributed to the slight differences in whiteness level obtained in the samples post-bleaching.
- This means the colour yield of samples subjected to the process of the present disclosure is not exactly the same but it is close enough to the conventionally bleached samples and, therefore, it is expected to be easy to adjust the dyeing recipes. In some cases, this colour difference will possibly mean the need to use less dyestuff.
- the process of the present disclosure is a perfectly viable option to replace the conventional bleaching process as the final article is softer, smoother, with cleaner surface, better hydrophilicity and lower weigh loss. Even though there seems to be some variation in the colour yield, dyeing recipes are expected to be easily adjusted. When assessing the variation of colour yield against all the benefits and advantages of the process of the present disclosure, it can be deemed a manageable adaptation.
- the process of the present disclosure allows meaningful savings in terms of water, energy and time consumption and originates less polluted effluents.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detergent Compositions (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT11556019 | 2019-06-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3748065A1 true EP3748065A1 (fr) | 2020-12-09 |
Family
ID=66793786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19178847.0A Pending EP3748065A1 (fr) | 2019-06-03 | 2019-06-06 | Procédé de blanchiment de textiles, produits et utilisations associés |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP3748065A1 (fr) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003002810A1 (fr) * | 2001-06-29 | 2003-01-09 | Novozymes North America, Inc. | Preparation par bain unique de materiaux cellulosiques |
WO2007093677A1 (fr) * | 2006-02-17 | 2007-08-23 | Valtion Teknillinen Tutkimuskeskus | Procede de pretraitement de materiaux textiles a base de cellulose |
WO2008023386A2 (fr) | 2006-08-25 | 2008-02-28 | Advanced Enzyme Technologies Limited | Nouvelles compositions de blanchiment biologique associées au délavage à la pierre de denims teintés par l'indigo et procédé d'utilisation associé |
US20120015860A1 (en) * | 2009-03-24 | 2012-01-19 | Henkel Ag & Co. Kgaa | Gentle bleaching agent |
CN103266495A (zh) | 2013-05-25 | 2013-08-28 | 上海秋橙新材料科技有限公司 | 棉涤混纺织物生物酶前处理方法 |
-
2019
- 2019-06-06 EP EP19178847.0A patent/EP3748065A1/fr active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003002810A1 (fr) * | 2001-06-29 | 2003-01-09 | Novozymes North America, Inc. | Preparation par bain unique de materiaux cellulosiques |
WO2007093677A1 (fr) * | 2006-02-17 | 2007-08-23 | Valtion Teknillinen Tutkimuskeskus | Procede de pretraitement de materiaux textiles a base de cellulose |
WO2008023386A2 (fr) | 2006-08-25 | 2008-02-28 | Advanced Enzyme Technologies Limited | Nouvelles compositions de blanchiment biologique associées au délavage à la pierre de denims teintés par l'indigo et procédé d'utilisation associé |
US20120015860A1 (en) * | 2009-03-24 | 2012-01-19 | Henkel Ag & Co. Kgaa | Gentle bleaching agent |
CN103266495A (zh) | 2013-05-25 | 2013-08-28 | 上海秋橙新材料科技有限公司 | 棉涤混纺织物生物酶前处理方法 |
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