Method for reducing formaldehyde residue of permanent flame retardant pure cotton fabric

Method for reducing formaldehyde residue of permanent flame retardant pure cotton fabric

The invention relates to the technical field of removing formaldehyde from pure cotton fabric, particularly to a method for reducing the formaldehyde residue of permanent flame retardant pure cotton fabric. The method includes the steps of: (1) washing: performing washing at 70-80DEG C, adding a pol...

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Hauptverfasser: QU QISHAN, LU TIANLONG, LIU DENGYUN, LU CHANGJIANG, WEI WEI
Format: Patent
Sprache:chi ; eng
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BLEACHING LEATHER OR FURS
DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS,YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS
FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
LAUNDERING
TEXTILES
TREATMENT OF TEXTILES OR THE LIKE
TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS
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creator QU QISHAN
LU TIANLONG
LIU DENGYUN
LU CHANGJIANG
WEI WEI
description The invention relates to the technical field of removing formaldehyde from pure cotton fabric, particularly to a method for reducing the formaldehyde residue of permanent flame retardant pure cotton fabric. The method includes the steps of: (1) washing: performing washing at 70-80DEG C, adding a polyphenol component of a natural Terminalia chebula extract into washing water, adjusting the pH of the washing liquid to 4, conducting washing repeatedly 3-4 times, and then using 90DEG C pure water to perform washing twice; (2) formaldehyde capture agent modification: employing cycloethyleneurea to perform modification treatment on free formaldehyde in the washed fabric for 0.5h 3 times repeatedly; (3) formaldehyde adsorption: using activated alumina, and performing placement in a 40DEG C sealed environment for 48h; and (4) formaldehyde source elimination: adding an oxidant during ammonia fumigating into an ammonia fumigate chamber to oxidize trivalent phosphorus all into pentavalent phosphorus, thus eliminating th
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subjects BLEACHING LEATHER OR FURS
DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS,YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS
FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
LAUNDERING
TEXTILES
TREATMENT OF TEXTILES OR THE LIKE
TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS
title Method for reducing formaldehyde residue of permanent flame retardant pure cotton fabric
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