ITVA20130004A1 - PASTE FOR TEXTILE PRINTING - Google Patents
PASTE FOR TEXTILE PRINTINGInfo
- Publication number
- ITVA20130004A1 ITVA20130004A1 IT000004A ITVA20130004A ITVA20130004A1 IT VA20130004 A1 ITVA20130004 A1 IT VA20130004A1 IT 000004 A IT000004 A IT 000004A IT VA20130004 A ITVA20130004 A IT VA20130004A IT VA20130004 A1 ITVA20130004 A1 IT VA20130004A1
- Authority
- IT
- Italy
- Prior art keywords
- weight
- polygalactomannans
- textile printing
- paste
- depolymerized
- Prior art date
Links
- 238000007639 printing Methods 0.000 title claims description 40
- 239000004753 textile Substances 0.000 title claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000002562 thickening agent Substances 0.000 claims description 16
- 239000000975 dye Substances 0.000 claims description 10
- SJEYSFABYSGQBG-UHFFFAOYSA-M Patent blue Chemical compound [Na+].C1=CC(N(CC)CC)=CC=C1C(C=1C(=CC(=CC=1)S([O-])(=O)=O)S([O-])(=O)=O)=C1C=CC(=[N+](CC)CC)C=C1 SJEYSFABYSGQBG-UHFFFAOYSA-M 0.000 claims description 8
- 239000000980 acid dye Substances 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- -1 pH regulators Substances 0.000 claims description 6
- 239000007800 oxidant agent Substances 0.000 claims description 4
- 229920002472 Starch Polymers 0.000 claims description 3
- 240000004584 Tamarindus indica Species 0.000 claims description 3
- 235000004298 Tamarindus indica Nutrition 0.000 claims description 3
- 235000010443 alginic acid Nutrition 0.000 claims description 3
- 229920000615 alginic acid Polymers 0.000 claims description 3
- 239000001913 cellulose Substances 0.000 claims description 3
- 229920002678 cellulose Polymers 0.000 claims description 3
- 239000002270 dispersing agent Substances 0.000 claims description 3
- 239000003995 emulsifying agent Substances 0.000 claims description 3
- 239000003906 humectant Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 235000019698 starch Nutrition 0.000 claims description 3
- 239000008107 starch Substances 0.000 claims description 3
- 229920001059 synthetic polymer Polymers 0.000 claims description 3
- 239000002518 antifoaming agent Substances 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 239000008139 complexing agent Substances 0.000 claims description 2
- 239000003755 preservative agent Substances 0.000 claims description 2
- 230000008719 thickening Effects 0.000 claims description 2
- 244000303965 Cyamopsis psoralioides Species 0.000 description 14
- 238000000034 method Methods 0.000 description 13
- 239000004744 fabric Substances 0.000 description 11
- 108090000790 Enzymes Proteins 0.000 description 9
- 102000004190 Enzymes Human genes 0.000 description 9
- 229940088598 enzyme Drugs 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 6
- 150000004676 glycans Chemical class 0.000 description 6
- 229920001282 polysaccharide Polymers 0.000 description 6
- 239000005017 polysaccharide Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 238000005227 gel permeation chromatography Methods 0.000 description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 235000013312 flour Nutrition 0.000 description 4
- 235000013305 food Nutrition 0.000 description 4
- 238000010907 mechanical stirring Methods 0.000 description 4
- 108010059892 Cellulase Proteins 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000004202 carbamide Substances 0.000 description 3
- 150000001735 carboxylic acids Chemical class 0.000 description 3
- 229940106157 cellulase Drugs 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007650 screen-printing Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- YODZTKMDCQEPHD-UHFFFAOYSA-N thiodiglycol Chemical compound OCCSCCO YODZTKMDCQEPHD-UHFFFAOYSA-N 0.000 description 3
- 229950006389 thiodiglycol Drugs 0.000 description 3
- 235000013311 vegetables Nutrition 0.000 description 3
- 102100032487 Beta-mannosidase Human genes 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- 229920002907 Guar gum Polymers 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- PCLIMKBDDGJMGD-UHFFFAOYSA-N N-bromosuccinimide Chemical compound BrN1C(=O)CCC1=O PCLIMKBDDGJMGD-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 108010059820 Polygalacturonase Proteins 0.000 description 2
- 244000250129 Trigonella foenum graecum Species 0.000 description 2
- 235000001484 Trigonella foenum graecum Nutrition 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 102000005840 alpha-Galactosidase Human genes 0.000 description 2
- 108010030291 alpha-Galactosidase Proteins 0.000 description 2
- 108010055059 beta-Mannosidase Proteins 0.000 description 2
- 235000005911 diet Nutrition 0.000 description 2
- 230000000378 dietary effect Effects 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 235000013325 dietary fiber Nutrition 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000002255 enzymatic effect Effects 0.000 description 2
- 108010093305 exopolygalacturonase Proteins 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 239000000665 guar gum Substances 0.000 description 2
- 235000010417 guar gum Nutrition 0.000 description 2
- 229960002154 guar gum Drugs 0.000 description 2
- 108010002430 hemicellulase Proteins 0.000 description 2
- 238000004128 high performance liquid chromatography Methods 0.000 description 2
- 230000003301 hydrolyzing effect Effects 0.000 description 2
- 125000000311 mannosyl group Chemical group C1([C@@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 235000001019 trigonella foenum-graecum Nutrition 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 description 1
- 238000005160 1H NMR spectroscopy Methods 0.000 description 1
- 229940122930 Alkalising agent Drugs 0.000 description 1
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 description 1
- 239000005695 Ammonium acetate Substances 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- HNBQFKZSMFFZQY-WDINFOTDSA-L CI Acid red 114 Chemical compound [Na+].[Na+].C1=CC(C)=CC=C1S(=O)(=O)OC1=CC=C(\N=N\C=2C(=CC(=CC=2)C=2C=C(C)C(\N=N/C=3C4=C(C=C(C=C4C=CC=3O)S([O-])(=O)=O)S([O-])(=O)=O)=CC=2)C)C=C1 HNBQFKZSMFFZQY-WDINFOTDSA-L 0.000 description 1
- 235000017399 Caesalpinia tinctoria Nutrition 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000001884 Cassia gum Substances 0.000 description 1
- 240000008886 Ceratonia siliqua Species 0.000 description 1
- 235000013912 Ceratonia siliqua Nutrition 0.000 description 1
- 244000037364 Cinnamomum aromaticum Species 0.000 description 1
- 235000014489 Cinnamomum aromaticum Nutrition 0.000 description 1
- 240000000491 Corchorus aestuans Species 0.000 description 1
- 235000011777 Corchorus aestuans Nutrition 0.000 description 1
- 235000010862 Corchorus capsularis Nutrition 0.000 description 1
- 101000925662 Enterobacteria phage PRD1 Endolysin Proteins 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- XKTMIJODWOEBKO-UHFFFAOYSA-M Guinee green B Chemical compound [Na+].C=1C=C(C(=C2C=CC(C=C2)=[N+](CC)CC=2C=C(C=CC=2)S([O-])(=O)=O)C=2C=CC=CC=2)C=CC=1N(CC)CC1=CC=CC(S([O-])(=O)=O)=C1 XKTMIJODWOEBKO-UHFFFAOYSA-M 0.000 description 1
- 229920000161 Locust bean gum Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 108091005804 Peptidases Proteins 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 239000004365 Protease Substances 0.000 description 1
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 description 1
- 244000112572 Sesbania bispinosa Species 0.000 description 1
- 235000010896 Sesbania bispinosa Nutrition 0.000 description 1
- 244000275012 Sesbania cannabina Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000388430 Tara Species 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229940043376 ammonium acetate Drugs 0.000 description 1
- 235000019257 ammonium acetate Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000001000 anthraquinone dye Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000000987 azo dye Substances 0.000 description 1
- 230000002902 bimodal effect Effects 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 1
- 235000019318 cassia gum Nutrition 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- RKPHXALLZGIJBL-UHFFFAOYSA-K chromium(3+);hydron;3-oxido-4-[(2-oxidonaphthalen-1-yl)diazenyl]naphthalene-1-sulfonate Chemical compound [H+].[H+].[H+].[Cr+3].C1=CC=C2C(N=NC3=C4C=CC=CC4=CC=C3[O-])=C([O-])C=C(S([O-])(=O)=O)C2=C1.C1=CC=C2C(N=NC3=C4C=CC=CC4=CC=C3[O-])=C([O-])C=C(S([O-])(=O)=O)C2=C1 RKPHXALLZGIJBL-UHFFFAOYSA-K 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000003398 denaturant Substances 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 238000012691 depolymerization reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006911 enzymatic reaction Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000007046 ethoxylation reaction Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000010021 flat screen printing Methods 0.000 description 1
- 108010066429 galactomannanase Proteins 0.000 description 1
- 229930182830 galactose Natural products 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 229940059442 hemicellulase Drugs 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 150000008040 ionic compounds Chemical class 0.000 description 1
- 235000021374 legumes Nutrition 0.000 description 1
- 239000006193 liquid solution Substances 0.000 description 1
- 239000000711 locust bean gum Substances 0.000 description 1
- 235000010420 locust bean gum Nutrition 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000002772 monosaccharides Chemical class 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-M naphthalene-1-sulfonate Chemical compound C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-M 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000010022 rotary screen printing Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- LGZQSRCLLIPAEE-UHFFFAOYSA-M sodium 1-[(4-sulfonaphthalen-1-yl)diazenyl]naphthalen-2-olate Chemical compound [Na+].C1=CC=C2C(N=NC3=C4C=CC=CC4=CC=C3O)=CC=C(S([O-])(=O)=O)C2=C1 LGZQSRCLLIPAEE-UHFFFAOYSA-M 0.000 description 1
- RRETZLLHOMHNNB-UHFFFAOYSA-M sodium;1-amino-9,10-dioxo-4-(2,4,6-trimethylanilino)anthracene-2-sulfonate Chemical compound [Na+].CC1=CC(C)=CC(C)=C1NC1=CC(S([O-])(=O)=O)=C(N)C2=C1C(=O)C1=CC=CC=C1C2=O RRETZLLHOMHNNB-UHFFFAOYSA-M 0.000 description 1
- IXNUVCLIRYUKFB-UHFFFAOYSA-M sodium;3-[[4-[[4-(diethylamino)-2-methylphenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]cyclohexa-2,5-dien-1-ylidene]methyl]-n-ethylanilino]methyl]benzenesulfonate Chemical compound [Na+].CC1=CC(N(CC)CC)=CC=C1C(C=1C=CC(=CC=1)N(CC)CC=1C=C(C=CC=1)S([O-])(=O)=O)=C(C=C1)C=CC1=[N+](CC)CC1=CC=CC(S([O-])(=O)=O)=C1 IXNUVCLIRYUKFB-UHFFFAOYSA-M 0.000 description 1
- FJBHGWADYLMEJG-UHFFFAOYSA-M sodium;3-[[4-[[4-(diethylamino)phenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]cyclohexa-2,5-dien-1-ylidene]methyl]-n-ethylanilino]methyl]benzenesulfonate Chemical compound [Na+].C1=CC(N(CC)CC)=CC=C1C(C=1C=CC(=CC=1)N(CC)CC=1C=C(C=CC=1)S([O-])(=O)=O)=C(C=C1)C=CC1=[N+](CC)CC1=CC=CC(S([O-])(=O)=O)=C1 FJBHGWADYLMEJG-UHFFFAOYSA-M 0.000 description 1
- CKMPIIPZKJISCU-UHFFFAOYSA-M sodium;4,8-diamino-1,5-dihydroxy-9,10-dioxoanthracene-2-sulfonate Chemical compound [Na+].O=C1C2=C(N)C=C(S([O-])(=O)=O)C(O)=C2C(=O)C2=C1C(O)=CC=C2N CKMPIIPZKJISCU-UHFFFAOYSA-M 0.000 description 1
- FTUYQIPAPWPHNC-UHFFFAOYSA-M sodium;4-[[4-[benzyl(ethyl)amino]phenyl]-[4-[benzyl(ethyl)azaniumylidene]cyclohexa-2,5-dien-1-ylidene]methyl]benzene-1,3-disulfonate Chemical compound [Na+].C=1C=C(C(=C2C=CC(C=C2)=[N+](CC)CC=2C=CC=CC=2)C=2C(=CC(=CC=2)S([O-])(=O)=O)S([O-])(=O)=O)C=CC=1N(CC)CC1=CC=CC=C1 FTUYQIPAPWPHNC-UHFFFAOYSA-M 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical compound OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 description 1
- 239000000213 tara gum Substances 0.000 description 1
- 235000010491 tara gum Nutrition 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229910001428 transition metal ion Inorganic materials 0.000 description 1
- AAAQKTZKLRYKHR-UHFFFAOYSA-N triphenylmethane Chemical compound C1=CC=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 AAAQKTZKLRYKHR-UHFFFAOYSA-N 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 230000000007 visual effect Effects 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
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/46—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing natural macromolecular substances or derivatives thereof
- D06P1/48—Derivatives of carbohydrates
-
- 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
- D06P5/001—Special chemical aspects of printing textile materials
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Coloring (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Description
PASTA PER STAMPA TESSILE PASTE FOR TEXTILE PRINTING
Settore tecnico Technical field
La presente invenzione riguarda paste per stampa tessile comprendenti, come addensanti, poligalattomannani depolimerizzati enzimaticamente. The present invention relates to pastes for textile printing comprising enzymatically depolymerized polygalactomannans as thickeners.
I tessuti stampati con le paste per stampa tessile comprendenti poligalattomannani depolimerizzati enzimaticamente mostrano una brillantezza di colore superiore, come dimostrato da un migliore effetto visivo evidente sul prodotto finale. Fabrics printed with textile printing pastes comprising enzymatically depolymerized polygalactomannans exhibit superior color brilliance as demonstrated by a better noticeable visual effect on the final product.
Stato dell’arte State of the art
Le paste per stampa tessile servono per trasferire coloranti su un tessuto in modo controllato attraverso una serigrafia, in modo da ottenere una corretta applicazione del motivo e della decorazione prevista. The pastes for textile printing are used to transfer dyes on a fabric in a controlled way through a screen printing, in order to obtain a correct application of the pattern and of the intended decoration.
La composizione della pasta per stampa tessile à ̈ fondamentale e influenza fortemente la qualità del prodotto finale. The composition of the paste for textile printing is fundamental and strongly influences the quality of the final product.
Le paste da stampa sono preparate sciogliendo un addensante in acqua e, successivamente, aggiungendo i coloranti e gli altri ausiliari chimici utili per il processo (quali regolatori di pH, antischiuma, stabilizzanti e altro) e hanno normalmente un contenuto di solidi compreso tra 4 e 20 % in peso. Printing pastes are prepared by dissolving a thickener in water and, subsequently, adding dyes and other chemical auxiliaries useful for the process (such as pH regulators, defoamers, stabilizers and more) and normally have a solids content between 4 and 20% by weight.
Gli addensanti comunemente usati sono composti essenzialmente da uno o più polimeri naturali o semisintetici, solubili in acqua, a differente peso molecolare, ad esempio amido e suoi derivati, alginati, polisaccaridi da tamarindo, derivati della cellulosa, poligalattomannani in generale e in particolare poligalattomannani ottenuti da semi di guar e loro derivati. The thickeners commonly used are essentially composed of one or more natural or semi-synthetic polymers, soluble in water, with different molecular weight, for example starch and its derivatives, alginates, tamarind polysaccharides, cellulose derivatives, polygalactomannans in general and in particular polygalactomannans obtained from guar seeds and their derivatives.
La funzione degli addensanti à ̈ di dare viscosità alla pasta in modo da consentire un controllo più efficace nella riproduzione del motivo e al tempo stesso fornire una fluidità sufficiente per facilitare il passaggio attraverso i fori del quadro da stampa e depositarsi sul tessuto. The function of thickeners is to give viscosity to the paste in order to allow a more effective control in the reproduction of the pattern and at the same time provide sufficient fluidity to facilitate the passage through the holes of the printing screen and deposit on the fabric.
I poligalattomannani depolimerizzati sono tra gli addensanti più utilizzati per la stampa con coloranti acidi su tessuti di fibre come lana, seta e poliammide. Come noto all’esperto del settore, i poligalattomannani depolimerizzati possiedono buone caratteristiche in un normale processo di stampa e possono essere rimossi facilmente con un lavaggio finale. Depolymerized polygalactomannans are among the most commonly used thickeners for printing with acid dyes on fiber fabrics such as wool, silk and polyamide. As known to the skilled in the art, depolymerized polygalactomannans have good characteristics in a normal printing process and can be easily removed with a final wash.
I poligalattomannani depolimerizzati disponibili in commercio sono ottenuti riducendo il peso molecolare di poligalattomannani naturali con metodi chimici, tramite l'utilizzo di acidi o alcali o, soprattutto, tramite l'uso di agenti ossidanti, come l’acqua ossigenata (come descritto ad esempio in JP 03-290196 ). The commercially available depolymerized polygalactomannans are obtained by reducing the molecular weight of natural polygalactomannans with chemical methods, through the use of acids or alkalis or, above all, through the use of oxidizing agents, such as hydrogen peroxide (as described for example in JP 03-290196).
Tra i metodi che permettono di riducenti il peso molecolare di poligalattomannani sono anche noti metodi di tipo fisico (utilizzando agitazione ad alta velocità o varie sorgenti di radiazioni), metodi biochimici (in cui vengono utilizzati enzimi, batteri o funghi che idrolizzano i polisaccaridi) e metodi termici, ma essi trovano limitate applicazioni su scala industriale. Among the methods that allow reducing the molecular weight of polygalactomannans are also known physical methods (using high-speed stirring or various sources of radiation), biochemical methods (in which enzymes, bacteria or fungi that hydrolyze polysaccharides are used) and thermal methods, but they have limited applications on an industrial scale.
Ad esempio, JP 1-020063 descrive come trattare una gomma guar con acido cloridrico a 40-70 °C in presenza di una cellulasi o pectinasi per produrre un guar idrolizzato con viscosità Brookfield® da 150 a 20.000 mPa*s al 5% peso in acqua, che può essere utilizzato nel settore alimentare. Non à ̈ chiaro se la depolimerizzazione sia provocata dal mezzo acido o dalla presenza di un specifico enzima non idrolitico: infatti cellulasi e pectinasi non sono in grado di rompere i legami 1-4 tra due unità di mannosio. For example, JP 1-020063 describes how to treat a guar gum with hydrochloric acid at 40-70 ° C in the presence of a cellulase or pectinase to produce a hydrolyzed guar with a Brookfield® viscosity of 150 to 20,000 mPa * s at 5% weight in water, which can be used in the food industry. It is not clear whether the depolymerization is caused by the acid medium or by the presence of a specific non-hydrolytic enzyme: in fact, cellulase and pectinase are unable to break 1-4 bonds between two mannose units.
JP 61-274695 descrive come staccare i pendagli di galattosio da un guar con una alfa-galattosidasi per renderlo adatto all’utilizzo come fibra alimentare o come additivo per alimenti dietetici. Il processo insegnato da JP 61-274695 non à ̈ propriamente una depolimerizzazione, perché l'alfa-galattosidasi agisce sui rami laterali della poligalattomannani e non rompe la catena principale di mannosio. JP 61-274695 describes how to detach the galactose pendants from a guar with an alpha-galactosidase to make it suitable for use as a dietary fiber or as an additive to dietary foods. The process taught by JP 61-274695 is not really a depolymerization, because the alpha-galactosidase acts on the side branches of the polygalactomannans and does not break the main mannose chain.
In letteratura sono descritti anche metodi enzimatici “puri†(cioà ̈ che non fanno uso anche di acidi o alcali o agenti ossidanti utilizzati in combinazione con l'enzima); essi permettono di preparare poligalattomannani altamente depolimerizzati, che, però, non sono utilizzabili come addensanti. The literature also describes â € œpureâ € enzymatic methods (ie that do not also use acids or alkalis or oxidizing agents used in combination with the enzyme); they allow to prepare highly depolymerized polygalactomannans, which, however, cannot be used as thickeners.
JP 63-269993 descrive polisaccaridi di origine vegetale difficilmente digeribili, come la gomma guar, che vengono parzialmente decomposti da un enzima idrolitico di origine vegetale avente attività galactomannasica, ottenendo idrolizzati con viscosità ≤ 10 mPa*s (misurata su una soluzione acquosa all’ 1% con un viscosimetro digitale DVL-B a 25 °C e 30 rpm) che possono essere usati come fibra alimentare o aggiunti a vari alimenti dietetici. JP 63-269993 describes polysaccharides of vegetable origin that are difficult to digest, such as guar gum, which are partially decomposed by a hydrolytic enzyme of vegetable origin having galactomannase activity, obtaining hydrolyzed with viscosity â ‰ ¤ 10 mPa * s (measured on an aqueous solution at € ™ 1% with a DVL-B digital viscometer at 25 ° C and 30 rpm) which can be used as dietary fiber or added to various dietary foods.
WO 99/04027 insegna come ottenere poligalattomannani altamente depolimerizzati, in particolare per uso alimentare e farmaceutico (ma anche per uso nel settore petrolifero o per la cura personale), trattando splits di poligalattomannani con enzimi. Qualsiasi enzima litico adatto può essere utilizzabile: per esempio cellulasi, emicellulasi, mannanasi, galactomannanasi, e persino proteasi. In realtà , i poligalattomannani depolimerizzati esemplificati sono ottenuti mediante trattamento con emicellulasi, hanno viscosità trascurabile in acqua e non possono essere utilizzati come addensanti per paste per stampa tessile. WO 99/04027 teaches how to obtain highly depolymerized polygalactomannans, in particular for food and pharmaceutical use (but also for use in the petroleum sector or for personal care), by treating polygalactomannan splits with enzymes. Any suitable lytic enzyme may be usable: for example cellulase, hemicellulase, mannanase, galactomannanase, and even protease. In reality, the depolymerized polygalactomannans exemplified are obtained by treatment with hemicellulases, have negligible viscosity in water and cannot be used as thickeners for textile printing pastes.
Si à ̈ ora trovato che poligalattomannani che sono stati opportunamente depolimerizzati mediante trattamento enzimatico possono essere utilizzati come addensanti in paste per stampa tessile e che, sorprendentemente, forniscono caratteristiche migliori alle paste da stampa in cui vengono utilizzati. It has now been found that polygalactomannans which have been suitably depolymerized by enzymatic treatment can be used as thickeners in textile printing pastes and which, surprisingly, provide better characteristics to the printing pastes in which they are used.
In particolare, si à ̈ scoperto che queste paste da stampa forniscono una migliore brillantezza di colore al substrato stampato, rispetto a quelle preparate utilizzando poligalattomannani depolimerizzati chimicamente. In particular, these printing pastes were found to provide better color brilliance to the printed substrate than those prepared using chemically depolymerized polygalactomannans.
La ragione di questo comportamento non à ̈ stato studiata in profondità , ma forse potrebbe essere dovuto alla diversa distribuzione del peso molecolare derivante dai due differenti processi depolimerizzazione. I poligalattomannani depolimerizzati enzimaticamente mostrano in cromatografia a permeazione su gel (GPC) una distribuzione dei pesi molecolari larga, quasi bimodale, mentre i poligalattomannani depolimerizzati chimicamente hanno una distribuzione dei pesi molecolari più stretta e regolare. The reason for this behavior has not been studied in depth, but perhaps it could be due to the different molecular weight distribution resulting from the two different depolymerization processes. Enzymatically depolymerized polygalactomannans show a wide, almost bimodal molecular weight distribution in gel permeation chromatography (GPC), while chemically depolymerized polygalactomannans have a narrower and more regular molecular weight distribution.
Con l'espressione "estremità riducenti" si intende l’estremità terminale di un polisaccaride con un carbonio anomerico riducente (C1) che non à ̈ coinvolto in un legame glicosidico. Il contenuto di estremità riducenti può essere determinato con differenti tecniche analitiche, quali spettrofotometria, gascromatografia o<1>H-NMR, e viene espresso come ï moli di glucosio per grammo di polisaccaride. The term "reducing ends" refers to the terminal end of a polysaccharide with an anomeric reducing carbon (C1) which is not involved in a glycosidic bond. The content of reducing ends can be determined with different analytical techniques, such as spectrophotometry, gas chromatography or <1> H-NMR, and is expressed as ï moles of glucose per gram of polysaccharide.
Disegni Drawings
La Figura 1 mostra la sovrapposizione di un cromatogramma ottenuto mediante cromatografia a permeazione di gel di un poligalattomannano da guar depolimerizzato enzimaticamente (linea tratteggiata) con quello dello stesso poligalattomannano da guar depolimerizzato chimicamente (linea piena). Figure 1 shows the overlap of a chromatogram obtained by gel permeation chromatography of an enzymatically depolymerized polygalactomannan from guar (dashed line) with that of the same chemically depolymerized polygalactomannan from guar (solid line).
Descrizione dell'invenzione Description of the invention
È quindi un oggetto fondamentale della presente invenzione l'uso, come addensanti in paste per stampa tessile, di poligalattomannani depolimerizzati enzimaticamente aventi un contenuto di estremità riducenti compreso tra 150 e 450 moli Î1⁄4moli/g, preferibilmente tra 200 e 350 Î1⁄4moli/g, e una viscosità Brookfield® a 20 °C e 20 rpm di circa 20.000 mPa*s a una concentrazione in acqua compresa tra 2 e 12 % in peso, preferibilmente tra 4 e 12% in peso. Un altro scopo dell'invenzione à ̈ una pasta per stampa tessile comprendente come addensante da 2,8 a 10 % in peso, preferibilmente da 3,5 a 8% in peso, di un poligalattomannano depolimerizzato enzimaticamente avente un contenuto di estremità riducenti compreso tra 150 e 450 Î1⁄4moli/g, preferibilmente da 200 a 350 Î1⁄4moli/g, e una viscosità Brookfield® a 20 °C e 20 rpm di circa 20.000 mPa*s ad una concentrazione in acqua compresa tra 2 e 12% in peso, preferibilmente tra 4 e 12% in peso. Therefore, a fundamental object of the present invention is the use, as thickeners in pastes for textile printing, of enzymatically depolymerized polygalactomannans having a reducing end content between 150 and 450 mol Î1⁄4 mol / g, preferably between 200 and 350 Î1⁄4 mol / g, and a Brookfield® viscosity at 20 ° C and 20 rpm of about 20,000 mPa * s at a concentration in water of between 2 and 12% by weight, preferably between 4 and 12% by weight. Another object of the invention is a paste for textile printing comprising as a thickener from 2.8 to 10% by weight, preferably from 3.5 to 8% by weight, of an enzymatically depolymerized polygalactomannan having a content of reducing ends comprised between 150 and 450 Î1⁄4mol / g, preferably from 200 to 350 Î1⁄4mol / g, and a Brookfield® viscosity at 20 ° C and 20 rpm of about 20,000 mPa * s at a concentration in water between 2 and 12% in weight, preferably between 4 and 12% by weight.
Descrizione dettagliata dell’invenzione Detailed description of the invention
Il poligalattomannani depolimerizzati enzimaticamente dell'invenzione possono essere ottenuti tramite depolimerizzazione di poligalattomannani derivati da varie fonti naturali. The enzymatically depolymerized polygalactomannans of the invention can be obtained by depolymerization of polygalactomannans derived from various natural sources.
Preferibilmente à ̈ un poligalattomannano ottenuto dal guar, una leguminosa (Cyamopsis tetragonoloba) coltivata principalmente in zone aride e predesertiche localizzate tra India e Pakistan. Preferably it is a polygalactomannan obtained from guar, a legume (Cyamopsis tetragonoloba) grown mainly in arid and pre-desert areas located between India and Pakistan.
In una forma di realizzazione preferita il poligalattomannano da guar à ̈ in forma di farina. In a preferred embodiment the polygalactomannan from guar is in the form of flour.
In un'altra forma di realizzazione il poligalattomannano da guar à ̈ in forma di splits. In another embodiment the polygalactomannan from guar is in the form of splits.
Per preparare i poligalattomannani depolimerizzati enzimaticamente possono essere utilizzati anche poligalattomannani diversi dal guar che sono disponibili in commercio. Esempi di poligalattomannani adatti sono quelli ottenuti da tara (gomma da tara), da semi di carrube (gomma da carrube), da cassia (gomma da cassia), da sesbania bispinosa (gomma da sesbania o gomma daincha) e da fieno greco (gomma da fieno greco). To prepare the enzymatically depolymerized polygalactomannans, commercially available polygalactomannans other than guar can also be used. Examples of suitable polygalactomannans are those obtained from tara (tara gum), locust bean seeds (carob gum), cassia (cassia gum), sesbania bispinosa (sesbania gum or daincha gum) and fenugreek (gum from fenugreek).
Per ottenere i poligalattomannani depolimerizzati che possono essere utilizzati come addensanti in paste per stampa tessile, i poligalattomannani devono essere trattati con una endo- β-mannanasi, ad esempio Mannaway 4.0L da Novozymes e Rohalase GMP da AB Enzymes. La reazione di depolimerizzazione può essere condotta, per esempio, aggiungendo da 0,0001 a 20 parti in peso ogni 100 parti in peso di poligalattomannano di una delle mannanasi commerciali summenzionate e agitando per un tempo compreso tra 1 e 24 ore ad una temperatura compresa tra 20 e 90 °C. To obtain depolymerized polygalactomannans that can be used as thickeners in textile printing pastes, polygalactomannans must be treated with an endo-β-mannanase, for example Mannaway 4.0L from Novozymes and Rohalase GMP from AB Enzymes. The depolymerization reaction can be carried out, for example, by adding from 0.0001 to 20 parts by weight for every 100 parts by weight of polygalactomannan of one of the aforementioned commercial mannanases and stirring for a time between 1 and 24 hours at a temperature ranging from 20 and 90 ° C.
Preferibilmente, il poligalattomannano viene trattato con l'enzima in presenza di da 10 a 200 parti in peso di acqua ogni 100 parti in peso di poligalattomannano. Preferably, the polygalactomannan is treated with the enzyme in the presence of 10 to 200 parts by weight of water every 100 parts by weight of polygalactomannan.
La depolimerizzazione enzimatica deve essere attentamente controllata per produrre un poligalattomannano depolimerizzato avente un contenuto di estremità riducenti comprese tra 150 e 450 Î1⁄4 moli/g, e viscosità Brookfield® a 20 °C e 20 rpm di circa 20.000 mPa*s ad una concentrazione compresa tra 2 e il 12% in peso in acqua. Enzymatic depolymerization must be carefully controlled to produce a depolymerized polygalactomannan having a reducing end content of between 150 and 450 Î1⁄4 mol / g, and Brookfield® viscosity at 20 ° C and 20 rpm of approximately 20,000 mPa * s at a concentration between 2 and 12% by weight in water.
È quindi necessario disattivare l'enzima appena il poligalattomannano depolimerizzato abbia raggiunto la viscosità desiderata, per esempio introducendo una fase di riscaldamento prolungato, ad esempio mediante riscaldamento per 1-5 ore a una temperatura di 100 °C o superiore, oppure aggiungendo denaturanti chimici come N-bromosuccinimmide o ioni di metalli di transizione, ad esempio Ag<+>; Hg<2+>, Zn<2+>, Cu<2+>. It is therefore necessary to deactivate the enzyme as soon as the depolymerized polygalactomannan has reached the desired viscosity, for example by introducing a prolonged heating phase, for example by heating for 1-5 hours at a temperature of 100 ° C or higher, or by adding chemical denaturants such as N-bromosuccinimide or transition metal ions, for example Ag <+>; Hg <2+>, Zn <2+>, Cu <2+>.
I poligalattomannani depolimerizzati enzimaticamente dell'invenzione sono caratterizzati in particolare dal contenuto di estremità riducenti per grammo di poligalattomannano, infatti i poligalattomannani depolimerizzati enzimaticamente mostrano un più alto numero di estremità riducenti rispetto a poligalattomannani aventi la stessa viscosità , ma depolimerizzati chimicamente. The enzymatically depolymerized polygalactomannans of the invention are characterized in particular by the content of reducing ends per gram of polygalactomannan, in fact the enzymatically depolymerized polygalactomannans show a higher number of reducing ends than polygalactomannans having the same viscosity, but chemically depolymerized.
Le paste per stampa tessile utilizzate nella presente invenzione possono includere almeno un colorante. I coloranti si differenziano dai pigmenti per il fatto che sono utilizzati come soluzioni liquide, non come dispersioni di particelle solide. In altre parole, i coloranti sono normalmente completamente solubili in acqua, mentre i pigmenti non lo sono. I poligalattomannani depolimerizzati enzimaticamente dell'invenzione sono particolarmente utili per la preparazione di paste da stampa contenenti coloranti acidi. The textile printing pastes used in the present invention can include at least one dye. Dyes differ from pigments in that they are used as liquid solutions, not as dispersions of solid particles. In other words, dyes are normally completely soluble in water, while pigments are not. The enzymatically depolymerized polygalactomannans of the invention are particularly useful for the preparation of printing pastes containing acid dyes.
Secondo una realizzazione preferita, le paste da stampa tessili comprendono coloranti acidi. Più preferibilmente, le paste da stampa tessile contengono da 0,1 a 10% in peso di uno o più coloranti acidi. According to a preferred embodiment, the textile printing pastes comprise acid dyes. More preferably, textile printing pastes contain from 0.1 to 10% by weight of one or more acid dyes.
Esempi di coloranti acidi adatti possono essere scelti nel gruppo dei coloranti antrachinonici, come Colour Index (Cl) Acid Blue 43 o CI Acid Blue 129, i coloranti azoici, come CI Acid Red 88 o CI Acid Red 114, ed coloranti a base di trifenilmetano, come CI Acid Violet 17, Cl Acid Blue 15, CI Acid Blue 7 e Cl Acid Green 3. Examples of suitable acid dyes can be selected from the group of anthraquinone dyes, such as Color Index (Cl) Acid Blue 43 or CI Acid Blue 129, azo dyes, such as CI Acid Red 88 or CI Acid Red 114, and triphenylmethane-based dyes , such as CI Acid Violet 17, Cl Acid Blue 15, CI Acid Blue 7 and Cl Acid Green 3.
Particolarmente preferiti sono coloranti acidi premetallizati, per esempio CI Acid Blue 193 o CI Acid Black 194. Particularly preferred are premetallized acid dyes, for example CI Acid Blue 193 or CI Acid Black 194.
Le paste per stampa tessile secondo l'invenzione possono inoltre contenere uno o più polimeri con caratteristiche addensanti, scelti tra alginati, amido e suoi derivati, derivati di tamarindo, polimeri sintetici, derivati di cellulosa, e derivati di poligalattomannani, come idrossipropil poligalattomannani e carbossimetil poligalattomannani, preferibilmente in quantità non superiore al 4% in peso. The pastes for textile printing according to the invention can also contain one or more polymers with thickening characteristics, selected from alginates, starch and its derivatives, tamarind derivatives, synthetic polymers, cellulose derivatives, and polygalactomannan derivatives, such as hydroxypropyl polygalactomannans and carboxymethyl polygalactomannans, preferably in quantities not exceeding 4% by weight.
Le paste per stampa tessile secondo l'invenzione possono inoltre comprendere additivi per stampa tessile noti all'esperto, come umettanti, emulsionanti, disperdenti; solubilizzanti; antischiuma; agenti riducenti, agenti ossidanti, agenti per tinture a riserva, regolatori del pH, conservanti, complessanti; e loro miscele. The pastes for textile printing according to the invention can further comprise additives for textile printing known to the skilled person, such as humectants, emulsifiers, dispersants; solubilizers; antifoam; reducing agents, oxidizing agents, reserve dyeing agents, pH regulators, preservatives, complexing agents; and their mixtures.
Gli umettanti, gli emulsionanti, agenti di dispersione possono essere composti noti anionici, cationici o non-ionici. Esempi di questi composti sono: prodotti di reazione con ossido di etilene di composti idrossi-alifatici, -aralifatici o -aromatici, acidi carbossilici, ammidi di acidi carbossilici o ammine; esteri solforici acidi o esteri parziali dell’acido acido fosforico con i composti prima menzionati; esteri di acidi grassi di mono o polisaccaridi o esteri acidi grassi con sorbitano e loro prodotti di etossilazione; C10-C20alchilsolfonati, C8-C12alchilbenzensolfonati; C8-C18alchil-solfati o -fosfati; o condensati di acidi solfonici aromatici, come i condensati formaldeide/naftalensolfonato. I composti indicati possono servire anche come agenti livellanti. The humectants, emulsifiers, dispersing agents can be known anionic, cationic or non-ionic compounds. Examples of these compounds are: reaction products with ethylene oxide of hydroxy-aliphatic, -araliphatic or -aromatic compounds, carboxylic acids, amides of carboxylic acids or amines; acid sulfuric esters or partial esters of phosphoric acid with the compounds mentioned above; fatty acid esters of mono or polysaccharides or fatty acid esters with sorbitan and their ethoxylation products; C10-C20alkylsulfonates, C8-C12alkylbenzenesulfonates; C8-C18alkyl-sulfates or -phosphates; or aromatic sulphonic acid condensates, such as formaldehyde / naphthalenesulfonate condensates. The compounds indicated can also serve as leveling agents.
Agenti solubilizzanti che possono essere utilizzati come ulteriori additivi sono, ad esempio, glicoli, da mono- a tetra-alchilen glicoli ed i loro eteri con alcoli C1-C4o i loro esteri con acidi carbossilici C1-C4. Solubilizing agents which can be used as further additives are, for example, glycols, mono- to tetra-alkylene glycols and their ethers with C1-C4 alcohols or their esters with C1-C4 carboxylic acids.
Gli antischiuma sono, per esempio, composizioni comprendenti oli vegetali o minerali o, in particolare, i polimeri a blocchi di ossido di propilene/ossido di etilene. Defoamers are, for example, compositions comprising vegetable or mineral oils or, in particular, propylene oxide / ethylene oxide block polymers.
Gli additivi per stampa tessile menzionati nei paragrafi precedenti possono essere presenti in una quantità compresa tra 0 e 10% in peso, basato sul peso totale delle paste secondo l'invenzione. The additives for textile printing mentioned in the preceding paragraphs can be present in a quantity ranging from 0 to 10% by weight, based on the total weight of the pastes according to the invention.
Le paste da stampa tessili dell’invenzione possono essere preparati secondo modalità note, versando lentamente la componente addensante in acqua, sotto agitazione meccanica e fino a completa dissoluzione, aggiungendo poi alla soluzione ottenuta gli additivi (correttori di pH, antischiuma, e così via) e il colorante, e infine addizionando acqua fino al raggiungimento della concentrazione desiderata di sostanze attive. The textile printing pastes of the invention can be prepared according to known methods, slowly pouring the thickener component into water, under mechanical stirring and until completely dissolved, then adding the additives (pH correctors, antifoamers, and so on) to the solution obtained. via) and the dye, and finally adding water until the desired concentration of active substances is reached.
Nel processo di stampa dell’invenzione, i materiali tessili vengono stampati utilizzando essenzialmente una qualsiasi delle tecniche note nell'arte. Una tecnica comune à ̈ la stampa serigrafica in cui la pasta à ̈ applicata sulla superficie del tessuto spingendo la pasta stessa attraverso il telaio. I telai sono tradizionalmente di seta, ma si può utilizzare un qualsiasi telaio adatto alla stampa serigrafica, ad esempio in nylon o poliestere. La stampa serigrafica rotativa e la stampa serigrafica piana sono due esempi di tecniche di stampa applicabili industrialmente. Anche i sistemi di stampa a getto d'inchiostro per il settore tessile sono adatti alla la realizzazione dell'invenzione. In the printing process of the invention, the textile materials are printed using essentially any of the techniques known in the art. A common technique is screen printing where the paste is applied to the surface of the fabric by pushing the paste through the frame. The frames are traditionally made of silk, but any frame suitable for screen printing can be used, such as nylon or polyester. Rotary screen printing and flat screen printing are two examples of industrially applicable printing techniques. Ink jet printing systems for the textile sector are also suitable for carrying out the invention.
I materiali tessili che possono essere stampati utilizzando le paste dell’invenzione sono materiali fibrosi a base di fibre sciolte, materiali in tessuto o a maglia o in forma di tessuti non tessuti, a base di fibre naturali o sintetiche o di loro miscele. Esempi di fibre naturali sono lana, seta, lino, nonché iuta. Esempi di fibre sintetiche sono poliammidi, poliacrilonitrile o polipropilene. The textile materials that can be printed using the pastes of the invention are fibrous materials based on loose fibers, woven or knitted materials or in the form of non-woven fabrics, based on natural or synthetic fibers or their mixtures. Examples of natural fibers are wool, silk, linen, as well as jute. Examples of synthetic fibers are polyamides, polyacrylonitrile or polypropylene.
Esempi. Examples.
Metodi di prova Test methods
La viscosità delle soluzioni à ̈ stata misurata 2 ore dopo la dissoluzione dei poligalattomannani depolimerizzati con un viscosimetro Brookfield DV-E® a 20 °C e a 20 rpm. The viscosity of the solutions was measured 2 hours after the dissolution of the depolymerized polygalactomannans with a Brookfield DV-E® viscometer at 20 ° C and 20 rpm.
La cromatografia a permeazione di gel (GPC) Ã ̈ stata eseguita dissolvendo i campioni guar depolimerizzati ad una concentrazione di 0,3 g di campione in 100 ml di acetato di ammonio 0,10 M ("fase mobile"). Duecento microlitri di ogni soluzione, filtrata su un filtro a membrana da 0,45 micron sono stati iniettati in un HPLC con rivelatore evaporativo a luce diffusa. Sono stati usate le seguenti colonne ad una temperatura di 60 °C: Supelco Progel TSK-G3000 PWXL, Progel TSK-G6000 PWXL, e precolonna Progel TSK-PWXL. L'HPLC Ã ̈ stato impostato ad una flusso di 0,8 ml/min per 50 minuti. Gel permeation chromatography (GPC) was performed by dissolving the depolymerized guar samples at a concentration of 0.3 g of sample in 100 ml of 0.10 M ammonium acetate ("mobile phase"). Two hundred microliters of each solution, filtered on a 0.45 micron membrane filter, were injected into an HPLC with diffused light evaporative detector. The following columns were used at a temperature of 60 ° C: Supelco Progel TSK-G3000 PWXL, Progel TSK-G6000 PWXL, and Progel TSK-PWXL pre-column. The HPLC was set at a flow rate of 0.8 mL / min for 50 minutes.
Il contenuto di estremità riducenti dei poligalattomannani à ̈ stato determinato secondo Zhang, P. Y. e Lynd, L. R., Biomacromolecules 6, 1510-1515 (2005). Esempi 1-5 The reducing end content of polygalactomannans was determined according to Zhang, P. Y. and Lynd, L. R., Biomacromolecules 6, 1510-1515 (2005). Examples 1-5
I poligalattomannani depolimerizzati enzimaticamente (Esempi 1-3) sono stati preparati miscelando 100 g di differenti farine di guar con 0,5 g di Mannaway 4.0L (Novozymes) e 150 g di acqua e riscaldando a 60 °C. Dopo 60 minuti la temperatura à ̈ stata portata a 100 °C per altri 60 minuti per la denaturazione dell'enzima. Il prodotto ottenuto à ̈ stato essiccato su letto fluido a 80 °C per 60 The enzymatically depolymerized polygalactomannans (Examples 1-3) were prepared by mixing 100 g of different guar flours with 0.5 g of Mannaway 4.0L (Novozymes) and 150 g of water and heating to 60 ° C. After 60 minutes the temperature was brought to 100 ° C for another 60 minutes for the denaturation of the enzyme. The product obtained was dried on a fluidized bed at 80 ° C for 60
minuti e poi macinato. Il contenuto finale di umidità delle polveri era circa 10- minutes and then ground. The final moisture content of the powders was about 10-
12% in peso. 12% by weight.
Per un confronto à ̈ stato utilizzata una farina di guar depolimerizzata con For comparison a depolymerized guar flour was used with
NaOH e perossido di idrogeno (Esempio 4). NaOH and hydrogen peroxide (Example 4).
La Tabella 1 riporta la concentrazione di poligalattomannani (% in peso) in Table 1 reports the concentration of polygalactomannans (wt%) in
acqua alla quale la viscosità Brookfield® à ̈ di 20.000 mPa*s e la quantità di water at which the Brookfield® viscosity is 20,000 mPa * s and the amount of
estremità riducenti dei poligalattomannani depolimerizzati utilizzati nelle prove reducing ends of the depolymerized polygalactomannans used in the tests
di stampa e di una farina di guar non modificata (Esempio 5). of printing and an unmodified guar flour (Example 5).
Table 1 Table 1
Estremità End
Concentrazione Concentration
Campione Riducenti Reducing sample
(% p/p) ( Î1⁄4moli/g) (% p / p) (Î1⁄4moles / g)
Esempio 1 7.0 210 Example 1 7.0 210
Esempio 2 9.5 289 Example 2 9.5 289
Esempio 3 9.9 323 Example 3 9.9 323
Esempio 4* 11.0 70.4 Example 4 * 11.0 70.4
Esempio 5* 1.6 89.0 Example 5 * 1.6 89.0
* Comparativo * Comparative
Prove di stampa. Printing tests.
Le quantità di addensanti di Esempi 1-4 necessarie per raggiungere una The quantities of thickeners of Examples 1-4 needed to achieve a
viscosità di 20.000 mPa*s sono stati aggiunti, sotto agitazione meccanica, a viscosity of 20,000 mPa * s were added, under mechanical stirring, to
91 g di acqua e sottoposte a agitazione meccanica fino a completa 91 g of water and subjected to mechanical stirring until completely
dissoluzione (circa 40 min). Le soluzioni sono state lasciate a riposo per circa dissolution (about 40 min). The solutions were left to stand for approx
mezz'ora. half an hour.
50 g di tiodiglicole e 50 g di urea sono stati pesati in un bicchiere 1000 ml e accuratamente miscelati. La miscela à ̈ stata sciolta versando acqua bollente sotto agitazione per ottenere 1000 g di soluzione. La soluzione à ̈ stata quindi filtrata su un tela di poliestere da 54 micron. 50 g of thiodiglycol and 50 g of urea were weighed into a 1000 ml beaker and thoroughly mixed. The mixture was dissolved by pouring boiling water while stirring to obtain 1000 g of solution. The solution was then filtered on a 54 micron polyester cloth.
60 g di soluzione di addensante sono stati accuratamente omogeneizzati tramite agitazione meccanica con 40 g di soluzione contenente tiodiglicole e urea. Successivamente sono stati aggiunti, sempre sotto agitazione, 2,0 g di (NH4)2SO4al fine di controllare il pH durante la fase di fissaggio. 60 g of thickener solution were carefully homogenized by mechanical stirring with 40 g of solution containing thiodiglycol and urea. Subsequently 2.0 g of (NH4) 2SO4 were added, still under stirring, in order to control the pH during the fixing step.
Un tessuto di seta bianco à ̈ stato stampato con le paste da stampa preparate con i poligalattomannani depolimerizzati degli Esempi 1-4 utilizzando un accesso adeguato 77 fili di seta/centimetro dello schermo (disegno da 5 strisce 5x40 cm) e di una macchina da stampa da laboratorio Zimmer regolata a velocità 4 e pressione 2. Per distribuire la pasta à ̈ stata usata una racla di acciaio da 4 mm. A white silk fabric was printed with the printing pastes prepared with the depolymerized polygalactomannans of Examples 1-4 using adequate access 77 silk threads / cm of the screen (5-strip 5x40 cm design) and a printing machine Zimmer laboratory set at speed 4 and pressure 2. A 4 mm steel doctor blade was used to distribute the paste.
Il tessuto così ottenuto à ̈ stato poi asciugato ad una temperatura di 90 °C per 1 minuto in forno e trattato per 40 minuti, per il fissaggio, in un vaporizzatore Arioli impostato a 102 °C. Il tessuto stampato à ̈ stato lavato a 30 °C in presenza di sapone, asciugato e infine stirato. The fabric thus obtained was then dried at a temperature of 90 ° C for 1 minute in the oven and treated for 40 minutes, for fixing, in an Arioli steamer set at 102 ° C. The printed fabric was washed at 30 ° C in the presence of soap, dried and finally ironed.
L'aspetto dei tessuti stampati sono stati valutati visivamente. Le zone stampate con le paste secondo l'invenzione erano più bianche della zona stampata con la pasta comparativa. The appearance of the printed fabrics were assessed visually. The areas printed with the pastes according to the invention were whiter than the area printed with the comparative paste.
Le prove di stampa sono state ripetute, utilizzando gli stessi ingredienti e seguendo la stessa procedura di stampa, ma con l'aggiunta di 30 g di Rosso Tiacidol GRE o Blu Scuro Tiasolan LB (coloranti acido commercializzati da Lamberti SpA) nella soluzione contenente tiodiglicole e urea. The printing tests were repeated, using the same ingredients and following the same printing procedure, but with the addition of 30 g of Red Tiacidol GRE or Dark Blue Tiasolan LB (acid dyes marketed by Lamberti SpA) in the solution containing thiodiglycol and urea.
L'aspetto dei tessuti stampati con i coloranti sono stati valutati visivamente. Le zone stampate con le paste secondo l'invenzione mostrano colori con una brillantezza superiore rispetto alla superficie stampata con la pasta The appearance of the fabrics printed with the dyes were assessed visually. The areas printed with the pastes according to the invention show colors with a higher brilliance than the surface printed with the paste
comparativa. comparative.
Claims (8)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000004A ITVA20130004A1 (en) | 2013-01-22 | 2013-01-22 | PASTE FOR TEXTILE PRINTING |
| PCT/EP2014/050762 WO2014114547A1 (en) | 2013-01-22 | 2014-01-16 | Textile printing paste |
| BR112015017050A BR112015017050A2 (en) | 2013-01-22 | 2014-01-16 | use of thickeners for textile printing paste, and textile printing paste |
| ES14701691.9T ES2622381T3 (en) | 2013-01-22 | 2014-01-16 | Textile printing paste |
| PT147016919T PT2948587T (en) | 2013-01-22 | 2014-01-16 | Textile printing paste |
| CN201480004511.9A CN104919111B (en) | 2013-01-22 | 2014-01-16 | textile printing paste |
| EP14701691.9A EP2948587B1 (en) | 2013-01-22 | 2014-01-16 | Textile printing paste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000004A ITVA20130004A1 (en) | 2013-01-22 | 2013-01-22 | PASTE FOR TEXTILE PRINTING |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ITVA20130004A1 true ITVA20130004A1 (en) | 2014-07-23 |
Family
ID=47683980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT000004A ITVA20130004A1 (en) | 2013-01-22 | 2013-01-22 | PASTE FOR TEXTILE PRINTING |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP2948587B1 (en) |
| CN (1) | CN104919111B (en) |
| BR (1) | BR112015017050A2 (en) |
| ES (1) | ES2622381T3 (en) |
| IT (1) | ITVA20130004A1 (en) |
| PT (1) | PT2948587T (en) |
| WO (1) | WO2014114547A1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999004027A1 (en) * | 1997-07-16 | 1999-01-28 | Rhodia Inc. | Production of galactomannan products by enzymatic reaction on guar splits |
| WO2005080668A2 (en) * | 2004-02-20 | 2005-09-01 | Lamberti Spa | Thickener for textile printing paste |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61274695A (en) | 1985-05-02 | 1986-12-04 | Sumitomo Chem Co Ltd | Method of reducing galactose content in galactomannan |
| JP2603470B2 (en) | 1987-04-28 | 1997-04-23 | 大日本製薬株式会社 | Foods containing partial digests of indigestible polysaccharides |
| JPH07100017B2 (en) | 1987-07-16 | 1995-11-01 | 日清製粉株式会社 | Food containing guar gum |
| JP2593724B2 (en) | 1990-04-04 | 1997-03-26 | 明治製菓株式会社 | Method for producing low-viscosity indigestible polysaccharide and food containing it |
| CA2331199C (en) * | 1998-06-10 | 2012-10-23 | Markus Sakari Kauppinen | Isolated mannanases for use in treating cellulosic or synthetic fibers |
| CN101418326A (en) * | 2008-12-03 | 2009-04-29 | 中国海洋大学 | Method for producing galacto-mannan-oligosaccharides by enzymatic degradation of sophora bean gum |
| CN102561060B (en) * | 2011-12-29 | 2014-02-26 | 昆山京昆油田化学科技开发公司 | Printing paste for printing textiles |
-
2013
- 2013-01-22 IT IT000004A patent/ITVA20130004A1/en unknown
-
2014
- 2014-01-16 WO PCT/EP2014/050762 patent/WO2014114547A1/en active Application Filing
- 2014-01-16 PT PT147016919T patent/PT2948587T/en unknown
- 2014-01-16 EP EP14701691.9A patent/EP2948587B1/en not_active Not-in-force
- 2014-01-16 CN CN201480004511.9A patent/CN104919111B/en not_active Expired - Fee Related
- 2014-01-16 BR BR112015017050A patent/BR112015017050A2/en not_active IP Right Cessation
- 2014-01-16 ES ES14701691.9T patent/ES2622381T3/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999004027A1 (en) * | 1997-07-16 | 1999-01-28 | Rhodia Inc. | Production of galactomannan products by enzymatic reaction on guar splits |
| WO2005080668A2 (en) * | 2004-02-20 | 2005-09-01 | Lamberti Spa | Thickener for textile printing paste |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2622381T3 (en) | 2017-07-06 |
| PT2948587T (en) | 2017-03-23 |
| WO2014114547A1 (en) | 2014-07-31 |
| BR112015017050A2 (en) | 2017-07-11 |
| CN104919111B (en) | 2017-04-26 |
| EP2948587B1 (en) | 2016-12-28 |
| EP2948587A1 (en) | 2015-12-02 |
| CN104919111A (en) | 2015-09-16 |
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