染整技术
染整技術
염정기술
TEXTILE DYEING AND FINISHING JOURNAL
2013年
12期
18-21
,共4页
活性染料%一浴二段染色法%匀染性%重现性
活性染料%一浴二段染色法%勻染性%重現性
활성염료%일욕이단염색법%균염성%중현성
reactive dyes%one-bath two-step dyeing process%level property%reproducibility
棉锦类织物通常采用二浴二步套染法染色（先以酸性染料染锦纶，再以活性染料套染棉）。然而，染艳绿色时，由于酸性染料的耐碱洗牢度较差，在碱性套染棉时，锦纶的色泽难以掌控，而且染色牢度（尤其是日晒牢度）欠佳，难以达到质量要求。实践证明：以中温型活性染料先酸性浴染锦纶，再碱性浴套染棉的一浴二段染色法，可以获得相对较好的染色效果。
棉錦類織物通常採用二浴二步套染法染色（先以痠性染料染錦綸，再以活性染料套染棉）。然而，染豔綠色時，由于痠性染料的耐堿洗牢度較差，在堿性套染棉時，錦綸的色澤難以掌控，而且染色牢度（尤其是日曬牢度）欠佳，難以達到質量要求。實踐證明：以中溫型活性染料先痠性浴染錦綸，再堿性浴套染棉的一浴二段染色法，可以穫得相對較好的染色效果。
면금류직물통상채용이욕이보투염법염색（선이산성염료염금륜，재이활성염료투염면）。연이，염염록색시，유우산성염료적내감세뇌도교차，재감성투염면시，금륜적색택난이장공，이차염색뇌도（우기시일쇄뇌도）흠가，난이체도질량요구。실천증명：이중온형활성염료선산성욕염금륜，재감성욕투염면적일욕이단염색법，가이획득상대교호적염색효과。
Cotton-nylon fabrics are usually dyed by two-bath two-step over dyeing process (Nylon is firstly dyed with acid dyes, and then cotton is dyed with reactive dyes). However, since acid dyes present poor alkali washing fastness, the color of nylon is difficult to be controlled and color fastness (especially light fastness) is poor when the cotton is dyed in basic condition to obtain emerald green fabrics, which are not able to meet the quality requirements. It has been found that relatively good dyeing effects can be achieved via one-bath two-step dyeing process in which nylon is firstly dyed with the M-style of reactive dyes in acid bath and then cotton is dyed in alkali bath.
