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Textile dyeing process

A technology of textiles and crafts, applied in the field of textile dyeing technology, which can solve the problems of fabric and textile damage, increase the cost of dyeing technology, etc.

Pending Publication Date: 2022-03-22
SANKO TEKSTIL ISLETMELERI SANAYI & TICARET A S +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Additionally, fabrics and textiles can often be damaged by prolonged and / or repeated exposure to highly alkaline conditions
[0011] In addition, a large amount of reducing salts and hydroxides are used in the traditional dyeing process, thus generating a large amount of waste water, which must be treated before being discarded, thereby increasing the cost of the dyeing process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0092] According to an embodiment, when eg the oxidative enzyme is mFMO and the cofactor regeneration enzyme is PTDH, the step of hydroxylating indole or indole derivatives to obtain indoxyl or indoxyl derivatives may be performed using the fusion enzyme PTDH-mFMO.

[0093] According to an embodiment, when for example the reductase is AzoA and the cofactor regenerating enzyme is PTDH, the step of converting indoxyl or indoxyl derivatives into leuco indoxyl or the leuco form of indoxyl derivatives may be performed using a fusion enzyme PTDH -AzoA.

[0094] For example, a PTDH-AzoA fusion enzyme can have the following sequence:

[0095] MGSSHHHHHHSSGLVPRGSHMLPKLVITHRVHEEILQLLAPHCELITNQTDSTLTREEILRRCRDAQAMMAFMPDRVDADFLQACPELRVIGCALKGFDNFDVDACTARGVWLTFVPDLLTVPTAELAIGLAVGLGRHLRAADAFVRSGKFRGWQPRFYGTGLDNATVGFLGMGAIGLAMADRLQGWGATLQYHARKALDTQTEQRLGLRQVACSELFASSDFILLALPLNADTLHLVNAELLALVRPGALLVNPCRGSVVDEAAVLAALERGQLGGYAADVFEMEDWARADRPQQIDPALLAHPNTLFTPHIGSAVRAVRLEIERCAAQNILQALAGERPINAVNRL...

Embodiment 1

[0239] Materials and methods

[0240] Indigo dyeing of cotton belts was carried out according to the process of the invention using the fusion enzymes PTDH-mFMO (oxidase mFMO fused to cofactor regenerating enzyme PTDH) and PTDH-AzoA (reductase AzoA fused to cofactor regenerating enzyme PTDH).

[0241] The cotton tape is hand sewn from several pieces of cotton cloth, the final size is 2x 20cm.

[0242] The apparatus for this experiment is based on figure 1 The schematic drawing and configuration. In particular, the device 8 for circulation or alternate immersion (submersion) and removal of textiles in the reaction mixture comprises a peristaltic pump as motor 8' with a head adapted to be configured as a roller 8" for immersion in the reaction mixture The swivel motion is provided by a cotton tape in the center (immersion 2 cm).

[0243] The cotton belt is rotated by the power of the peristaltic pump, which rotates the cotton cloth in and out of the reaction mixture. Thus,...

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Abstract

The invention relates to a textile dyeing process, in particular to a process for dyeing a textile by using an enzyme. The invention also relates to a method for producing a leuco form of a leuco indigo and / or an indigo derivative. The invention further relates to textiles obtainable according to said process, to a device comprising a reactor containing an enzyme, and to a microbial flavin-containing monooxygenase.

Description

technical field [0001] The present invention relates to the process of dyeing textiles, in particular the dyeing of textiles using enzymes. The invention also relates to a process for producing leuco indigo and / or indigo and / or derivatives thereof. Background technique [0002] Vat dyes are insoluble dyes that require a reducing agent to dissolve in water. Generally, dyeing with vat dyes involves applying the dye to the textile in its soluble, reduced form, followed by oxidation of the dye back to the insoluble form, thereby imparting color to the textile. [0003] Indigo is a vat dye of formula I: [0004] [0005] Substitution on the indigo aromatic ring with groups such as halogen, alkyl, alkoxy, amino, aryl, aryloxy, and carbonyl can provide compounds of various colors other than blue, and it is the so-called indigo derivative. [0006] Indigo and its derivatives are usually reduced to their leuco form (ie, leuco indigo), which is water soluble for application to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/22D06P1/44D06P1/46D06P3/60C12N9/02C12N9/88
CPCD06P3/6025D06P1/0004D06P1/228D06P1/008D06P1/002D06P1/445D06P1/46C12N9/0069C12N9/88C12N9/0073C12Y114/14C12Y114/19C12Y113/11052C12Y401/99001C09B67/0078C09B7/00D06P5/02
Inventor N·隆查尔F·科努克格鲁M·W·弗拉吉J·厄利尔玛兹E·屯瑟
Owner SANKO TEKSTIL ISLETMELERI SANAYI & TICARET A S
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