EP3519623B1 - Procédé écologique de blanchiment local et reproductible de tissus à l'ozone - Google Patents
Procédé écologique de blanchiment local et reproductible de tissus à l'ozone Download PDFInfo
- Publication number
- EP3519623B1 EP3519623B1 EP17784899.1A EP17784899A EP3519623B1 EP 3519623 B1 EP3519623 B1 EP 3519623B1 EP 17784899 A EP17784899 A EP 17784899A EP 3519623 B1 EP3519623 B1 EP 3519623B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ozone
- hygroscopic substance
- bleaching
- dyed material
- nitrate
- 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.)
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims description 110
- 238000000034 method Methods 0.000 title claims description 49
- 238000004061 bleaching Methods 0.000 title description 67
- 239000004744 fabric Substances 0.000 title description 40
- 239000000126 substance Substances 0.000 claims description 84
- 239000000463 material Substances 0.000 claims description 59
- 238000011282 treatment Methods 0.000 claims description 40
- 230000000694 effects Effects 0.000 claims description 37
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 25
- 230000008859 change Effects 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 13
- -1 tachyhydrite Chemical compound 0.000 claims description 12
- 239000002562 thickening agent Substances 0.000 claims description 12
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 10
- 150000003839 salts Chemical class 0.000 claims description 10
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 9
- 239000000080 wetting agent Substances 0.000 claims description 9
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 5
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 5
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 5
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 4
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 4
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims description 4
- 150000001991 dicarboxylic acids Chemical class 0.000 claims description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 4
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims description 4
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims description 4
- HSZCZNFXUDYRKD-UHFFFAOYSA-M lithium iodide Chemical compound [Li+].[I-] HSZCZNFXUDYRKD-UHFFFAOYSA-M 0.000 claims description 4
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 claims description 4
- YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Chemical compound [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 claims description 4
- 239000003550 marker Substances 0.000 claims description 4
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 claims description 4
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 4
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 claims description 4
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 4
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 4
- 150000001298 alcohols Chemical class 0.000 claims description 3
- 239000001110 calcium chloride Substances 0.000 claims description 3
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 3
- 235000011187 glycerol Nutrition 0.000 claims description 3
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 3
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 3
- 229920000151 polyglycol Polymers 0.000 claims description 3
- 239000010695 polyglycol Substances 0.000 claims description 3
- 235000011152 sodium sulphate Nutrition 0.000 claims description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 claims description 2
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims description 2
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 claims description 2
- JTNCEQNHURODLX-UHFFFAOYSA-N 2-phenylethanimidamide Chemical compound NC(=N)CC1=CC=CC=C1 JTNCEQNHURODLX-UHFFFAOYSA-N 0.000 claims description 2
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 2
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 2
- TVXBFESIOXBWNM-UHFFFAOYSA-N Xylitol Natural products OCCC(O)C(O)C(O)CCO TVXBFESIOXBWNM-UHFFFAOYSA-N 0.000 claims description 2
- 229940061720 alpha hydroxy acid Drugs 0.000 claims description 2
- 150000001280 alpha hydroxy acids Chemical class 0.000 claims description 2
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 claims description 2
- 229910001622 calcium bromide Inorganic materials 0.000 claims description 2
- WGEFECGEFUFIQW-UHFFFAOYSA-L calcium dibromide Chemical compound [Ca+2].[Br-].[Br-] WGEFECGEFUFIQW-UHFFFAOYSA-L 0.000 claims description 2
- 239000004202 carbamide Substances 0.000 claims description 2
- 150000001735 carboxylic acids Chemical class 0.000 claims description 2
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims description 2
- 150000002334 glycols Chemical class 0.000 claims description 2
- 235000014655 lactic acid Nutrition 0.000 claims description 2
- 239000004310 lactic acid Substances 0.000 claims description 2
- INHCSSUBVCNVSK-UHFFFAOYSA-L lithium sulfate Inorganic materials [Li+].[Li+].[O-]S([O-])(=O)=O INHCSSUBVCNVSK-UHFFFAOYSA-L 0.000 claims description 2
- OTCKOJUMXQWKQG-UHFFFAOYSA-L magnesium bromide Chemical compound [Mg+2].[Br-].[Br-] OTCKOJUMXQWKQG-UHFFFAOYSA-L 0.000 claims description 2
- 229910001623 magnesium bromide Inorganic materials 0.000 claims description 2
- PALNZFJYSCMLBK-UHFFFAOYSA-K magnesium;potassium;trichloride;hexahydrate Chemical compound O.O.O.O.O.O.[Mg+2].[Cl-].[Cl-].[Cl-].[K+] PALNZFJYSCMLBK-UHFFFAOYSA-K 0.000 claims description 2
- VQHSOMBJVWLPSR-WUJBLJFYSA-N maltitol Chemical compound OC[C@H](O)[C@@H](O)[C@@H]([C@H](O)CO)O[C@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O VQHSOMBJVWLPSR-WUJBLJFYSA-N 0.000 claims description 2
- 239000000845 maltitol Substances 0.000 claims description 2
- 235000010449 maltitol Nutrition 0.000 claims description 2
- 229940035436 maltitol Drugs 0.000 claims description 2
- 229940099596 manganese sulfate Drugs 0.000 claims description 2
- 239000011702 manganese sulphate Substances 0.000 claims description 2
- 235000007079 manganese sulphate Nutrition 0.000 claims description 2
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 claims description 2
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 claims description 2
- 150000002894 organic compounds Chemical class 0.000 claims description 2
- 235000006408 oxalic acid Nutrition 0.000 claims description 2
- 229920005862 polyol Polymers 0.000 claims description 2
- 150000003077 polyols Chemical class 0.000 claims description 2
- 229910000343 potassium bisulfate Inorganic materials 0.000 claims description 2
- 239000001103 potassium chloride Substances 0.000 claims description 2
- 235000011164 potassium chloride Nutrition 0.000 claims description 2
- 235000010333 potassium nitrate Nutrition 0.000 claims description 2
- 239000004323 potassium nitrate Substances 0.000 claims description 2
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 2
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 2
- 235000011151 potassium sulphates Nutrition 0.000 claims description 2
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 claims description 2
- 229910000342 sodium bisulfate Inorganic materials 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- 235000010344 sodium nitrate Nutrition 0.000 claims description 2
- 239000004317 sodium nitrate Substances 0.000 claims description 2
- 239000000600 sorbitol Substances 0.000 claims description 2
- 235000010356 sorbitol Nutrition 0.000 claims description 2
- RBTVSNLYYIMMKS-UHFFFAOYSA-N tert-butyl 3-aminoazetidine-1-carboxylate;hydrochloride Chemical compound Cl.CC(C)(C)OC(=O)N1CC(N)C1 RBTVSNLYYIMMKS-UHFFFAOYSA-N 0.000 claims description 2
- FAKFSJNVVCGEEI-UHFFFAOYSA-J tin(4+);disulfate Chemical compound [Sn+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O FAKFSJNVVCGEEI-UHFFFAOYSA-J 0.000 claims description 2
- 239000000811 xylitol Substances 0.000 claims description 2
- 235000010447 xylitol Nutrition 0.000 claims description 2
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 claims description 2
- 229960002675 xylitol Drugs 0.000 claims description 2
- 239000011592 zinc chloride Substances 0.000 claims description 2
- 235000005074 zinc chloride Nutrition 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 41
- 239000007864 aqueous solution Substances 0.000 description 38
- 239000004753 textile Substances 0.000 description 36
- 238000006385 ozonation reaction Methods 0.000 description 26
- 239000003795 chemical substances by application Substances 0.000 description 20
- 239000003086 colorant Substances 0.000 description 14
- 239000000975 dye Substances 0.000 description 14
- 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 13
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- 239000012286 potassium permanganate Substances 0.000 description 10
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- 235000000177 Indigofera tinctoria Nutrition 0.000 description 8
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Images
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
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/15—Locally discharging the dyes
- D06P5/153—Locally discharging the dyes with oxidants
Definitions
- the present invention relates to an environmentally friendly method to improve the treatment for changing the color and tone of a dyed fabric. It is related to a method for increasing the bleaching intensity and improving the reproducibility of ozone bleaching of dyed fabrics by an environmentally friendly aqueous ozone booster, which also ensures time stability of the achievable bleaching effect during dwelling of the textile before ozone treatment.
- Industrial methods for bleaching of jeans and for creating the highly desired vintage and distressed/worn look are mostly based on local treatments like sandblasting and handsanding (mechanical treatment) and/or chemical treatment by e.g. potassium permanganate (KMnO 4 ), and/or subsequent treatments with pumice stones, hydrogen peroxide (H 2 O 2 ), sodium hypochlorite (NaOCI), or other oxidizing agents, which are sprayed locally onto desired areas of the ready garment.
- Sandblasting as a very cheap method used in earlier times, was officially banned from production processes due to highly negative impacts on workers' health (silicosis).
- US20140068871 discloses a method for decolorizing a dyed denim fabric through a dry ozone process to obtain a decolorized look in the denim fabric.
- Ozone on the one hand is indeed a rather toxic gas consisting of three oxygen atoms (O 3 ), on the other hand it is produced directly on-site from ambient air oxygen in closed chambers e.g. via electric discharge (which means it is easily and ubiquitously available), and it is also quickly decomposing again after application, resulting in essential and harmless oxygen.
- One big advantage of using ozone is that no chemicals are discharged into the environment such as heavy metals, toxic auxiliaries, and high salt freight by any possibly necessary neutralization step etc., and significant amounts of water can be saved during dry ozone treatment.
- a whole denim textile product is wetted with water and then bleached with ozone.
- the dry ozone treatment process includes spraying water to desired areas of the textile product and bleaching with ozone.
- a drum is loaded with denim textile products together with wetted cotton fabric scraps for cross-wetting, followed by ozone treatment.
- Water in this case is the chemical mediator for ensuring strong bleaching: water is dissolving ozone gas to a certain extent, but it is also swelling the cellulosic fibers of the fabric to a certain extent; the dissolved ozone is then diffusing to the bleaching sites on the textile, potential reaction and degradation products such as other reactive oxygen species (ROS) get stabilized by surrounding water and thus the half-life of reactive species is significantly extended, thus rendering the bleaching process working.
- ROS reactive oxygen species
- JP2004019084A discloses a method for treating a textile material with ozone after moisturizing it with water.
- a powdery body or granules consisting of water soluble salt are sprinkled over the pre-wetted textile material before ozone treatment.
- Said powder or granules adhere non-uniformly and randomly onto convex parts of the surface, in which discoloration is suppressed at the respective areas by absorption of the surrounding moisture.
- Respective water soluble salts described in this application are sodium sulfate (Na 2 SO 4 ), calcium chloride (CaCl 2 ), magnesium chloride (MgCl 2 ), magnesium sulfate (MgSO 4 ) etc., including respective anhydrides or hydrates of said salts.
- alkaline or reducing agents are used to destroy ozone locally, thus preventing discoloration at respective treated areas.
- WO2012119532A1 Another type of ozone treatment of textile material is disclosed in WO2012119532A1 .
- a method for treating denim jeans by topical abrasion, followed by rinsing with water, ozone treatment and final rinsing with water is described, in which no other chemicals are used in any of the steps except water and ozone.
- initial rinsing is necessary to remove the bulk of sizing and to establish moist conditions, which is essential for successful ozone bleaching action as described above.
- the bleaching efficiency is depending on critical factors such as moisture level and ozone treatment time, in which a moisture level of 20% (weight of water in relation to weight of denim jeans) gives comparably stronger bleaching than 100% moisture level due to otherwise too high level of free-flowing water; this is also the reason why for example in bleaching of cellulosic pulp in the pulp and paper industry as well as cellulose fiber industry high consistency is desired, as inter alia disclosed in US5181987A . The longer the reaction time the more pronounced the worn and vintage look is.
- EP554648A discloses a process for decolorizing garments with ozone. Ozone blocking agents are applied before treatment with ozone.
- WO9513415A and JP-H-061783 are disclosing bleaching of dyed textiles with aqueous bath comprising ozone.
- a method for changing the color of a dyed material such as, for example, cellulosic fiber, yarn, fabric, or garment in order to obtain a vintage or used look, wherein said dyed material is subjected to a pretreatment with a hygroscopic substance and thereafter the dyed material is ozone treated.
- ozone O 3
- the ozone booster is a compound or mixture which enhances the effectiveness of the ozone treatment when compared to water.
- the ozone booster is an environmentally friendly and non-hazardous substance or mixture.
- the ozone booster comprises at least one hygroscopic substance.
- the present application also relates to the use of an aqueous solution comprising at least one hygroscopic substance for increasing the color value change and hue of a dyed material.
- the present application further relates to a garment obtained by the inventive method of applying a hygroscopic substance for increasing the color value change of a dyed material by subsequent ozone treatment.
- the present invention discloses a novel and unexpected combination of an environmentally friendly chemical pretreatment of a dyed material followed by ozone bleaching, in which local and reproducible color value change ( c.f. bleaching) effects during a certain time span on the material is achieved.
- local and reproducible color value change c.f. bleaching
- use of hazardous chemicals like potassium permanganate or chlorine bleaching is avoided.
- cotton yarn is subjected to dyeing in order to obtain e.g. the blue color of the later fabric, e.g. denim.
- a pretreatment step so-called mercerization
- the yarn is treated with high alkalinity during a short period of time. This treatment is changing the crystalline structure of the cellulose fibers, swelling and shrinking the fibers, and additionally rounding them off.
- the pretreatment by alkali is responsible for more intense color in the subsequent dyeing step, brighter shades and more ring dyeing as well as superficial dyeing.
- dyeing of cotton yarn for standard blue denim cotton fabrics is carried out with indigo as the main dyestuff.
- the second most important dyestuffs are sulfur dyes, which can be applied solely or in combination with indigo in order to create new effects (so-called bottoming or topping with sulfur dye).
- the way of application is rather similar for both dyestuffs, since from a chemical point of view both dyeing processes are based on oxidation/reduction principles (typical vat dyes).
- oxidation/reduction principles typically vat dyes.
- colors and used dyestuffs are changing and a posttreatment of the manufactured and dyed jeans is necessary.
- the bleaching or "used effect” can e.g. be obtained by KMnO 4 , chlorine, organic peroxides, persulfates, reducing agents (e.g. glucose), laser treatment, ozone treatment or even by the action of enzymes (e.g. cellulases, laccases, peroxidases).
- reducing agents e.g. glucose
- enzymes e.g. cellulases, laccases, peroxidases.
- ozone in combination with a chemical pretreatment of the garment with environmentally friendly and non-hazardous chemicals as ozone booster was shown to be a promising alternative to prevailing methods.
- Ozone is already used in the jeans industry. Normally it is used for a final clean-up of the garment before the article of clothing is ready for customers, and to adjust the color of the whole garment. This means that there are many ozone-generators/machines available; however, by virtue of the sole use during the clean-up step and color adjustment, the capacities of these machines are usually not fully exploited. So far it was not possible to carry out reproducible local bleaching on e.g. jeans garments using ozone, since the ozone gas is commonly applied to the whole garment. In contrast, potassium permanganate can be applied to the fabric or garment onto very well-defined areas e.g. by spraying, and is thus preferred in terms of reproducibility and local applicability.
- US20140068871A1 discloses a method for local jeans bleaching with ozone.
- the garment is moistened locally in order to be efficiently bleached during ozonation.
- Only ozone gas which is dissolved in water in turn acts as an effective bleaching agent.
- any moisture applied locally to the jeans is mostly gone, either by drying or random diffusion into the bulk textile.
- the present invention overcomes this major disadvantage by using an ozone booster for wetting the garment, which comprises at least one chemical of hygroscopic nature.
- the ozone booster may inter alia be applied by spraying directly on the dyed material at desired areas, enabling subsequent local ozone bleaching even after prolonged dwelling.
- the principle of the invention turned out to primarily be based on ensuring a long-lasting and persistent humidity at desired areas of the dyed material, additionally protecting the dyed material against drying due to the special chemical composition of the ozone booster. Only by this it is possible to bleach dyed material reproducibly even after temporary storage.
- the invention can easily be used directly on site with existing equipment and replace environmentally hazardous potassium permanganate spray.
- a completely non-toxic ozone booster is in a first step sprayed or applied otherwise directly on desired and selected areas of the dyed material or on the whole garment; the actual bleaching is subsequently carried out in closed ozonation drums e.g. at room temperature without the need of additional water. This process does not burden the health of the employees and the environment.
- ozone is a very efficient bleaching agent comprising - due to the chemical structure - high selectivity e.g. towards indigo or sulfur dyes.
- direct destruction of the dye by ozone gas is very limited due to decreased reactivity at the solid/gas interface.
- a liquid support is thus enhancing the reactivity and bleaching effect significantly.
- DMSO representing a hygroscopic solvent
- further compounds such as an additional swelling agent
- water for swelling of the cellulose fibers, rendering more reactive sites accessible to bleaching and thus enhancing the bleaching effect even more.
- other parameters influencing the bleaching effect are the humidity of the ambient air, the temperature, air pressure, ozone concentration as well as treatment time. High humidity of the ambient air in the factory is prolonging the drying time; the same is true for lower temperatures.
- Ozone is produced directly on-site in closed chambers from ambient air after concentration of oxygen followed by electric discharge, according to the following chemical formula: 3 O 2 ⁇ 2 O 3
- one embodiment of the invention relates to a method for increasing the color value change of a dyed material comprising the following steps:
- an aqueous solution comprising at least one hygroscopic substance exhibits significant time stability for ensuring proper moistening of the textile surface resulting in significantly enhanced ozone bleaching. This finding is in serious contrast to what has been stated in JP2004019084 , in which certain inorganic salts of hygroscopic nature were claimed to even suppress the bleaching action of subsequent ozone treatment.
- the fabric or garment is dwelled for at least 5 minutes up to 24 hours, or even longer or predried to a certain extent, preferably at room temperature, but also at elevated temperatures, e.g., up to 120°C.
- textile material or “fabric” are used interchangeably and each refer to fibers, yarns, fabrics, flexible knitted, woven or nonwoven material consisting of a network of natural or artificial fibers (yarn or thread).
- the textile material may also be used in production of further goods such as cloths, garments, carpets, bags, shoes, jewelry, furnishings, artifacts, etc.
- the respective textile material is represented as dyed/colored and finished denim good.
- the respective material is a textile material represented by a variety of garments including jeans skirts, jeans jackets, jeans shorts, jeans vests, jeans dresses, and/or corduroy and twill garments.
- the material may be dyed or coated with a dye, in which the dye may be selected from natural or synthetic dyes of every class; the industry currently preferably uses indigo dye, sulfur dyes and other dyestuff classes (e.g. dischargeable dyes etc.), or combinations thereof as top and bottom blends or mixtures.
- a dye in which the dye may be selected from natural or synthetic dyes of every class; the industry currently preferably uses indigo dye, sulfur dyes and other dyestuff classes (e.g. dischargeable dyes etc.), or combinations thereof as top and bottom blends or mixtures.
- the textile material may be of cellulosic origin and selected from natural fibers, such as bast fibers like jute, flax, hemp, leaf fibers such as sisal, seed fibers such as cotton, or bamboo fibers, or man-made fibers such as lyocell fibers, viscose, rayon type fibers, modal, cupro and/or acetate type cellulosic fibers and optionally mixtures with synthetic fibers, if applicable and chemically compatible.
- natural fibers such as bast fibers like jute, flax, hemp, leaf fibers such as sisal, seed fibers such as cotton, or bamboo fibers
- man-made fibers such as lyocell fibers, viscose, rayon type fibers, modal, cupro and/or acetate type cellulosic fibers and optionally mixtures with synthetic fibers, if applicable and chemically compatible.
- the fabric or garment is dwelled for at least 5 minutes or up to 24 hours, or even longer if necessary.
- ozone booster refers to an environmentally friendly and non-hazardous compound or mixture.
- Hazardous compounds such as for example listed in the ECHA database of substances of very high concern, are thus avoided.
- Suitable non-hazardous compounds are e.g. hygroscopic substances.
- the hygroscopic substance may be, but not limited to, selected from the group of hygroscopic inorganic salts, organic compounds, liquids and solvents, alcohols, dicarboxylic and carboxylic acids and deliquescent compounds as well as respective anhydrates or hydrated forms, or mixtures thereof.
- the hygroscopic compound may be selected from the group, but not limited to, DMSO, aluminum chloride, aluminum nitrate, calcium chloride, calcium nitrate, calcium bromide, carnallite, lithium chloride, lithium bromide, lithium iodide, lithium nitrate, lithium sulfate, magnesium chloride, magnesium nitrate, magnesium sulfate, magnesium bromide, manganese sulfate, tin sulfate, dicarboxylic acids such as malonic acid or oxalic acid, glutaric acid, urea, alpha hydroxy acids such as lactic acid, polyols as for example sorbitol, xylitol, maltitol, glycerol, sodium bromide, sodium sulfate, sodium bisulfate, sodium chloride, sodium nitrate, tachyhydrite, zinc chloride, zinc nitrate, potassium chloride, potassium nitrate, potassium sul
- the concentration of the hygroscopic substance in aqueous solution is typically in the range of 0.1-90 w-%, preferably in the range of 10-80%, more preferably in the range of 20-70 w-%, most preferably in the range of 30-60 w-%, depending on the desired effect.
- the amount of the hygroscopic substance is solely limited by its respective solubility in water, in which also saturated solutions may be applied, but more preferably the concentration is at least 5-10% below the limit of solubility due to reasons of stability of the solution and the avoidance of unwanted precipitation.
- textile auxiliary chemicals may be added to the at least one hygroscopic substance in any combination and concentration in solid or liquid form to improve the usability and performance of the said mixture comprising at least one hygroscopic substance and water according to what is required: e.g. dispersants, wetting agents, surfactants, thickening agents, colorants, tinting agents, silicones, leveling agents, antifoams, antimigration agents, antibackstaining agents, softeners, stabilizers, buffer substances, substances for pH adjustment, and optical brightening agents.
- dispersants e.g. dispersants, wetting agents, surfactants, thickening agents, colorants, tinting agents, silicones, leveling agents, antifoams, antimigration agents, antibackstaining agents, softeners, stabilizers, buffer substances, substances for pH adjustment, and optical brightening agents.
- Further chemicals may be added to impart more desirable improvement of the textile in hand feel or other property like softness, waterproofing, antimicrobial or microbe-reducing chemicals, encapsulated perfumes, etc., or co-solvents (alcohols, ketones, protic solvents, aprotic solvents, polar solvents, apolar solvents, nonionic solvents, ionic solvents, ionic liquids, emulsifying and dispersing agents etc.).
- co-solvents alcohols, ketones, protic solvents, aprotic solvents, polar solvents, apolar solvents, nonionic solvents, ionic solvents, ionic liquids, emulsifying and dispersing agents etc.
- Respective thickening agents may be selected from, but not limited to, compounds which are commonly used as textile auxiliaries, food additives, in cosmetics and personal hygiene products, i.e. starch and modified starches, cellulose and modified celluloses (i.e. methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, carboxymethyl cellulose, hydroxypropylmethyl cellulose, hydroxypropyl cellulose, ethylhydroxyethyl cellulose), alginates (i.e.
- the thickening agent or mixtures thereof may increase the viscosity of the aqueous solution up to 10,000 cP, more preferably up to 1,000 cP, most preferably 100-200 cP, or similar to water.
- the solution is preferably an aqueous solution, but it may be also applied separately and stepwise or as at least one pure hygroscopic substance or mixture in powdered or any solid form.
- the textile material may also be evenly or unevenly impregnated with said composition using any of the conventional techniques.
- At least one marker dye is added to the aqueous mixture.
- the marker dye is selected from, for example, but not limited to, acid dyes, azoic dyes like methylene red, basic dyes, dispersing dyes, vat dyes, sulfur dyes and others or food dyes such as for example 8'-Apo- ⁇ -caroten-8 ⁇ -al, Allura Red AC, Aluminum, Amaranth, Annatto (Norbixin), Anthocyane, Azorubin, Betanin, Brillant black, Brillant blue, Brown FK, Brown HT, Canthaxanthin, Capsanthin, Carmoisine, Carotin, Chinolin yellow, Chlorophyll, chromene (e.g.
- the marker dye is preferably a food dye.
- the aqueous mixture may further comprise a colorant.
- the colorant is selected from the same group of dyes as indicated above.
- the colorant may be added in order to increase the visibility of the aqueous mixture during spraying.
- the colorant may be added in a concentration in the range of 0.0001 to 10%, preferably in the range of 0.01 to 5%, most preferably in the range of 0.01 to 2%.
- the aqueous mixture may further comprise a wetting agent or surfactant.
- the wetting agent/surfactant is added for increasing the penetration activity of the aqueous solution.
- the wetting agent is for example a nonionic or ionic surfactant, most preferably a nonionic surfactant.
- the wetting agent is a mixture of polyglycol ethers of fatty acid alcohols, thus an alcohol alkoxylate.
- the wetting agent may be added in a concentration in the range of 0.001 to 10%, but more preferably in the range of 0.01 to 5%, most preferably 0.01-1%.
- the aqueous mixture may further comprise a softening agent.
- the softening agent is for example an anionic/cationic but also a zwitterionic/non-ionic, sometimes silicone-based, surface active compound.
- the softening agent may be added in a concentration in the range of 0.1 to 25%, or more preferably in the range of 0.1 to 10%.
- the aqueous solution comprises up to 10-95 w-% DMSO.
- the hygroscopic substance containing aqueous solution is applied onto a desized dyed textile.
- the treated textile is subjected to ozone treatment after application of the aqueous solution containing at least one hygroscopic substance.
- Ozone treatment means contacting the said treated textile with ozone gas in batch or continuous systems. This can for example be done in a washing machine, which is dedicated to ozone washing and thus connected to an ozone generator.
- the ozonation is typically carried out at room temperature during tumbling of the textile without the use of additional water. New machine types are being recently used or are under development which e.g. apply ozone gas in continuous processes, are suitable as well.
- the ozonation time is depending on the ozone concentration and ozone production capacity of the respective ozone generator as well as the desired bleaching effect. The lower the ozone concentration, the longer the reaction time for achieving a desired effect is.
- a drum is loaded with denim textile products together with pre-wetted cotton fabric scraps (previously soaked in an aqueous solution comprising at least one hygroscopic substance) for cross-wetting, followed by ozone treatment. This way it is possible to achieve random bleaching enhancement at cross-wetted areas.
- a fabric is soaked into a solution containing at least one hygroscopic substance.
- the fabric is then dried and optionally a cover layer comprising a polymer coating and/or sizing agent is applied e.g. by spraying, dipping etc. Sizing or coating agents are well-known to a person skilled in the art.
- the fabric is then dried again. After mechanical abrasion (handsanding) and/or laser treatment the textile is allowed to dwell followed by subsequent ozonized.
- a contrast will be achieved by the above treatment even if no hygroscopic substance is used. However, the presence of the hygroscopic substance will significantly increase the contrast between the abraded and non-abraded parts of the fabric. The intensity of the contrast between the abraded and non-abraded parts of the fabric is apparent when compared to non-treated fabric.
- the hygroscopic salt is added to a sizing bath or coating of a yarn.
- the yarn is then converted into a fabric by e.g. weaving or knitting.
- the textile is allowed to dwell and subsequently ozonized.
- the hygroscopic salt is applied below the size layer of a yarn or textile.
- the key dependent variable in replicating the worn out look is the abrasion intensity, brightness or whiteness of the image.
- Intensity refers to the purity of a hue. Intensity is also known as chroma or saturation.
- the highest intensity refers to the purity of a hue. The highest intensity or purity of a hue is the hue as it appears in the spectrum or on the color wheel. A hue reduced in intensity is called a tone.
- Color also has a value, i.e. a relative degree of lightness or darkness. Most colors are recognizable in a full range of values; e.g. we identify as a form of "red" everything from the palest pink to the darkest maroon. Even though we assign different names to the different values of red we still know that they are derived from red. All hues have a normal value; the lightness or darkness of that hue as it appears in the spectrum. Yellow, for example, is a light-valued color while violet is a dark-valued color. As a result, there will be an uneven range of light or dark values for each hue.
- the color can be measured by means of spectrophotometers and tristimulus colorimeters (Chroma Meters). They measure reflected and transmitted color of objects. These are used in industrial fields and other areas for color quality control, grading by color, and CCM applications on a wide variety of subjects, including automotive parts, paint, plastic, textiles, construction materials and foods, and correcting vision problems.
- the measurements are displayed and represented in L*, a* and b* values of the CIE 1976 color space.
- the L*a*b* color space includes all perceivable colors, which means that its gamut exceeds those of the RGB and CMYK color models.
- One of the most important attributes of the L*a*b*-model is device independence. This means that the colors are defined independent of their nature of creation or the device they are displayed on.
- the L*a*b* color space is used when graphics for print have to be converted from RGB to CMYK, as the L*a*b* gamut includes both the RGB and CMYK gamut. Also it is used as an interchange format between different devices as for its device independency.
- the space itself is a three-dimensional real number space that contains an infinite number of possible representations of colors.
- the space is usually mapped onto a three-dimensional integer space for device-independent digital representation, and for these reasons, the L*, a*, and b* values are usually absolute, with a pre-defined range.
- the red/green opponent colors are represented along the a* axis, with green at negative a* values and red at positive a* values.
- the yellow/blue opponent colors are represented along the b* axis, with blue at negative b* values and yellow at positive b* values.
- a denim garment is treated with an aqueous solution containing at least one hygroscopic substance and subsequently subjected to ozonation.
- a denim garment is treated locally with an aqueous solution containing at least one hygroscopic substance and subsequently subjected to ozonation.
- a denim garment is treated with sandpaper to roughen parts of the surface and then treated with an aqueous solution containing at least one hygroscopic substance and subsequently subjected to ozonation.
- a denim garment is treated locally with an aqueous solution containing at least one hygroscopic substance, allowed to dwell under ambient or elevated temperature conditions for several hours and subsequently subjected to ozonation.
- a denim garment is treated with sandpaper to roughen parts of the surface and then treated locally with an aqueous solution containing at least one hygroscopic substance, allowed to dry under ambient or elevated temperature conditions for several hours and subsequently subjected to ozonation.
- a denim garment is optionally pretreated with desizing agents, enzymes, chlorine, glucose, peroxides, etc. Then treated locally with an aqueous solution containing at least one hygroscopic substance and subsequently subjected to ozonation.
- a denim garment is optionally pretreated with desizing agents, enzymes, chlorine, glucose, peroxides, etc. Then treated locally with an aqueous solution containing at least one hygroscopic substance, allowed to dwell under ambient conditions or elevated temperature conditions for several hours and subsequently subjected to ozonation.
- a denim garment is optionally pretreated with desizing agents, enzymes, chlorine, glucose, peroxides, etc., and dried, then treated locally with an aqueous solution containing at least one hygroscopic substance, allowed to dry under ambient or elevated temperature conditions for several hours and subsequently subjected to ozonation.
- a whole denim garment is treated with an aqueous solution containing at least one hygroscopic substance and subsequently subjected to ozonation.
- a whole denim garment is treated with an aqueous solution containing at least one hygroscopic substance by immersion, then centrifuged and subsequently subjected to ozonation.
- a dyed fabric is treated with an aqueous solution containing at least one hygroscopic substance and subsequently subjected to ozonation.
- a dyed fabric is locally or one side treated with an aqueous solution containing at least one hygroscopic substance, e.g. by means of printing, spraying, brushing, etc. and subsequently subjected to ozonation.
- a dyed yarn is treated with an aqueous solution containing at least one hygroscopic substance by immersion, then coated, dried and processed into a garment and subsequently subjected to ozonation.
- a dyed yarn is treated with an aqueous solution containing at least one hygroscopic substance by immersion, then coated, dried and processed into a garment, in which the coating is removed by any means of scraping, lasering, etc. and subsequently subjected to ozonation.
- a colored yarn is treated with an aqueous solution containing at least one hygroscopic substance by immersion, then sized, dried and processed into a garment, in which the size is removed by any means of scraping, lasering, etc. and subsequently subjected to ozonation.
- a whole denim garment is treated with an aqueous solution containing at least one hygroscopic substance, allowed to dry under ambient or elevated temperature conditions for several hours and subsequently subjected to ozonation.
- a material is treated with an aqueous solution containing at least one hygroscopic substance, allowed to dry and then dyed and then subjected to ozonation.
- the said aqueous solution comprising at least one hygroscopic salt is applied either by brushing, foaming, immersion, padding, printing, sponging, nebulizing, spraying, or by other methods such as stone and/or powder carrier (contact method).
- the treated garment is ozonized directly or after drying/dwelling or storage for several hours - like during common production conditions in the industry, respectively.
- aqueous solution containing at least one hygroscopic substance is combined with thickeners and humectants in various concentrations to provide desired viscosity if needed in production processes.
- thickeners and humectants as well as respective concentrations are well known to a person skilled in the art.
- further textile auxiliary chemicals are added to and dissolved in the liquid ozone booster in any combination and concentration: this applies to antibackstaining agents, antifoaming agents, antimigration agents, colorants, dispersants, leveling agents, optical brighteners, silicones, softeners, stabilizers, surfactants, thickening agents, tinting agents and wetting agents.
- the said treated garment is ozonized after drying/dwelling or storage for several hours, respectively.
- a raw denim garment was abraded by laser or hand sanding to mark specific used look areas. Subsequently said inventive aqueous solution containing at least one hygroscopic substance was sprayed or applied by brush or sponge on the abraded areas and then subjected to ozone treatment.
- a raw denim garment was desized and dried. Subsequently an aqueous solution containing at least one hygroscopic substance was sprayed or applied by brush or sponge on the abraded areas.
- a raw denim garment is used as it is, or desized, and/or stonewashed or enzyme washed and/or bleached if desired and dried. Subsequently an aqueous solution containing at least one hygroscopic substance is sprayed or applied by brush or sponge or towel on specific areas of the garment.
- Table 1 depicts compositions of aqueous solutions which were applied to denim garments.
- a raw denim fabric is used as it is, or desized, and/or stonewashed or enzyme washed and/or bleached if desired and dried. Subsequently said aqueous solution containing at least one hygroscopic substance is sprayed or applied by brush or sponge or towel on specific areas of the garment. The treated fabric is then ozonized after drying or storage for several hours, respectively, in continuous machinery set up. Afterwards the fabric is laser-treated in continuous machinery set up and washed and dried.
- Fig. 1 The effect of boosting the ozone bleaching intensity is shown in Fig. 1 for samples 1-4 including the control sample (pure water + thickener). Samples were treated with ozone for 6 min at room temperature; one half of the sample area was sprayed with the respective solutions as shown in Table 1 and allowed to dwell/hang for two hours at ambient conditions. The other half was freshly sprayed before ozonation in order to compare the bleaching effect to the respective aged sample.
- the garment is then allowed to stand/dwell under ambient conditions for several hours simulating industrial process streams and waiting periods.
- the garment is then subjected to ozonation in a closed drum for a certain period of time (typically several minutes up to hours), in which the actual bleaching by ozone is taking place. Due to the wetting properties of the applied solution only pre-treated areas get locally bleached efficiently, whereas non-treated and thus dry regions undergo traditional "cleaning-up", in which comparably intense bleaching is not possible.
- Fig. 1 the results of ozone bleaching after pretreatment with samples 1-4 and thickened water as a reference are depicted.
- hygroscopic substances for example DMSO as described above
- water further textile auxiliary chemicals may be added to and dissolved in the liquid booster in any combination and concentration for improving the overall usability and desired performance of the product: this applies to antibackstaining agents, antifoaming agents, antimigration agents, colorants, dispersants, leveling agents, optical brighteners, silicones, softeners, stabilizers, surfactants, thickening agents, tinting agents and wetting agents.
- the well-known additives for experts in the field are usually applied in concentrations from 0.001 to 10 or even 20%, depending on the desired effect.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
- Detergent Compositions (AREA)
- Paper (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Claims (7)
- Procédé d'augmentation du changement de valeur de couleur par augmentation de la luminosité d'un matériau coloré comprenant les étapes suivantes :(a) l'application d'une substance hygroscopique sur ledit matériau coloré,(b) le séjour du matériau coloré de l'étape a) pendant au moins 5 minutes jusqu'à 24 heures, ou même plus longtemps, et(c) l'application d'ozone gazeux sur ledit matériau de (b) afin d'obtenir le changement souhaité d'intensité de couleur, et dans lequel l'activité de l'ozone est augmentée par la substance hygroscopique.
- Procédé selon la revendication 1, ladite substance hygroscopique étant choisie dans le groupe des sels organiques hygroscopiques, des composés organiques, des liquides et des solvants, des alcools, des acides carboxyliques et dicarboxyliques et des composés déliquescents, leurs anhydrates ou formes hydratées respectifs, ou des mélanges de ceux-ci.
- Procédé selon la revendication 2, ladite substance hygroscopique étant choisie dans le groupe constitué par le DMSO, le chlorure d'aluminium, le nitrate d'aluminium, le chlorure de calcium, le nitrate de calcium, le bromure de calcium, la carnallite, le chlorure de lithium, le bromure de lithium, l'iodure de lithium, le nitrate de lithium, le sulfate de lithium, le chlorure de magnésium, le nitrate de magnésium, le sulfate de magnésium, le bromure de magnésium, le sulfate de manganèse, le sulfate d'étain, les acides carboxyliques tels que l'acide malonique ou l'acide oxalique, l'acide glutarique, l'urée, les acides alpha hydroxy tels que l'acide lactique, les polyols comme par exemple de sorbitol, le xylitol, le maltitol, le glycérol, le bromure de sodium, le sulfate de sodium, le bisulfate de sodium, le chlorure de sodium, le nitrate de sodium, le tachyhydrite, le chlorure de zinc, le nitrate de zinc, le chlorure de potassium, le nitrate de potassium, le sulfate de potassium, le bisulfate de potassium, le bromure de potassium, l'éthanol, le méthanol, les autres glycols tels que l'éthylène/le propylène/le butylène glycol et les dérivés de polyglycols respectifs, ou les mélanges de ceux-ci.
- Procédé selon l'une quelconque des revendications 1 à 3, en outre un colorant marqueur et/ou un épaississant et/ou un agent mouillant étant appliqué sur le matériau coloré en combinaison avec la substance hygroscopique avant le traitement à l'ozone.
- Procédé d'augmentation de l'activité de l'ozone sur un matériau coloré comprenant les étapes de prétraitement dudit matériau coloré en appliquant une substance hygroscopique et en faisant séjourner ledit matériau coloré prétraité pendant au moins 5 minutes jusqu'à 24 heures ou même plus longtemps, avant traitement à l'ozone.
- Procédé selon les revendications 1 ou 5, dans lequel l'activité de l'ozone est augmentée dans des parties choisies du matériau coloré en appliquant la substance hygroscopique sur les parties choisies dudit matériau coloré.
- Procédé selon la revendication 1 ou 5, dans lequel l'activité augmentée de l'ozone provoque un changement distinct de la couleur du matériau coloré.
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EP16192076 | 2016-10-03 | ||
PCT/EP2017/075037 WO2018065388A1 (fr) | 2016-10-03 | 2017-10-03 | Procédé respectueux de l'environnement pour le blanchiment local et reproductible d'un tissu avec de l'ozone |
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EP3519623A1 EP3519623A1 (fr) | 2019-08-07 |
EP3519623B1 true EP3519623B1 (fr) | 2022-06-01 |
EP3519623B8 EP3519623B8 (fr) | 2022-07-13 |
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EP17784899.1A Active EP3519623B8 (fr) | 2016-10-03 | 2017-10-03 | Procédé écologique de blanchiment local et reproductible de tissus à l'ozone |
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EP (1) | EP3519623B8 (fr) |
CN (1) | CN110073054B (fr) |
ES (1) | ES2922545T3 (fr) |
PT (1) | PT3519623T (fr) |
WO (1) | WO2018065388A1 (fr) |
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CN108442151B (zh) * | 2018-04-17 | 2020-06-26 | 广东溢达纺织有限公司 | 纯棉染色织物渐变剥色方法 |
CN109338706A (zh) * | 2018-11-07 | 2019-02-15 | 青岛奥洛思新材料有限公司 | 一种退浆脱色复合酶及其怀旧风格的牛仔面料水洗工艺 |
JP7392995B2 (ja) * | 2020-06-10 | 2023-12-06 | 豊和株式会社 | ユーズド加工を施した物品の製造方法 |
ES2953291T3 (es) * | 2020-07-01 | 2023-11-10 | Jeanologia Sl | Método y aparato para el tratamiento de un tejido textil |
CN113073461B (zh) * | 2021-03-03 | 2022-09-06 | 江南大学 | 一种有色涤纶织物的回收方法 |
IT202100007712A1 (it) | 2021-03-29 | 2022-09-29 | Soko Chimica S R L | Metodo di decolorazione di tessuti |
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DE4018912A1 (de) | 1990-06-13 | 1991-12-19 | Bunawerke Huels Gmbh | Vorrichtung und verfahren zum faellen von polymeren |
US5118322A (en) * | 1990-07-31 | 1992-06-02 | Eric Wasinger | Ozone decolorization of garments |
JPH0737715B2 (ja) * | 1990-08-08 | 1995-04-26 | 豊和株式会社 | 繊維染色物の脱色模様の形成方法 |
JPH0781238B2 (ja) * | 1992-06-26 | 1995-08-30 | 日東製網株式会社 | デニム製品のオゾン水による脱色加工時に於ける 発色助剤添加による発色加工方法とその製品 |
WO1995013415A1 (fr) * | 1993-11-10 | 1995-05-18 | Ecolab Inc. | Decoloration de tissus et de vetements au moyen d'un agent de traitement liquide contenant de l'ozone |
JP4022436B2 (ja) * | 2002-06-20 | 2007-12-19 | 豊和株式会社 | 脱色模様形成方法 |
HK1154749A2 (en) | 2011-03-08 | 2012-04-27 | Silvermoon Jeans Ltd | A method of treating fabrics and garments |
US20120276821A1 (en) * | 2011-04-28 | 2012-11-01 | Richardiere Gilbert | Method and system enabling premature use of a textile garment made of denim fabric |
CN102787486B (zh) * | 2012-08-15 | 2014-10-01 | 广东省均安牛仔服装研究院 | 一种应用于牛仔面料的无水洗水工艺 |
US9562318B2 (en) | 2012-09-07 | 2017-02-07 | Kevin Jin Youn | Method for decolorizing a denim fabric using ozone |
TR201909077T4 (tr) * | 2014-04-24 | 2019-07-22 | Guardian Mfg Inc | Tekstil ürünlerinin ağartılması için usuller ve sistemler. |
-
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- 2017-10-03 CN CN201780074860.1A patent/CN110073054B/zh active Active
- 2017-10-03 ES ES17784899T patent/ES2922545T3/es active Active
- 2017-10-03 EP EP17784899.1A patent/EP3519623B8/fr active Active
- 2017-10-03 WO PCT/EP2017/075037 patent/WO2018065388A1/fr unknown
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CN110073054A (zh) | 2019-07-30 |
EP3519623A1 (fr) | 2019-08-07 |
EP3519623B8 (fr) | 2022-07-13 |
ES2922545T3 (es) | 2022-09-16 |
ES2922545T8 (es) | 2024-01-19 |
WO2018065388A1 (fr) | 2018-04-12 |
PT3519623T (pt) | 2022-07-29 |
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