COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Lili Wang,Nasha Zeng,Jinqi Ye,Keying Zheng,Junyi Lu,Minghua Wu,Huijun Li
Disperse-dye wash-free digital inkjet dyeing, which combines digital jetting technology with disperse-dye wash-free dyeing technology, is a simple process that reduces carbon and pollutant emissions, conserves dyes and chemical materials and delivers a fast response. In this study, based on the principle of solubility parameter, a series of wash-free digital inkjet-dyeing waterborne polyurethane (WPU) which directionally delivered the disperse dyes, were prepared by employing isophorone diisocyanate (IPDI) as the hard monomer, polybutylene adipate (PBA) as the soft segment and polydimethylsiloxane (PDMS) as the modified soft segment. The results showed that the WPU film prepared from 6 wt% PDMS and 42 wt% IPDI, exhibited the highest water resistance, mechanical and adhesive properties, and directional dye delivery among the films. The optimal dosage of WPU in the wash-free ink was 6 wt%. Compared with the pure dye ink, the front colour yield of the inkjet-dyed fabrics with WPU wash-free ink reached 16.08 and improved by 18.1%. The colour fastness to dry/wet rubbing achieved grade 4-5 and grade 3-4, respectively. It demonstrated the good prospects of WPU in wash-free dyeing application. In particular, the approach promises inkjet-dyed polyester fabrics of high surface colour and fastness under no reduction-cleaning/washing procedures.
研究领域:
材料科学
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纺织工程
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染整技术
✓ 已验证
产品关联
DOI
高影响因子
TEXTILE RESEARCH JOURNAL
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2018
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IF 1.54
Lili Wang,Songsong Cui,Huagang Ni,Minghua Wu
The color performances of disperse dye washing-free printing have tight connections with the solubility parameters of polymer binders. Based on the solubility parameter theory, ethylhexyl acrylate (EHA) and methyl methacrylate (MMA) were selected as monomers. A series of polyacrylate (PA) binders were prepared by mini-emulsion polymerization. The effects of the mixed emulsifiers and the EHA-MMA mass ratios on PA properties were investigated. Results showed that PA emulsion remained more stable, the particle size and distribution were smaller, and the film possessed better tensile performances at the mass ratio of sodium lauryl sulfate (SDS):fatty alcohol polyoxyethylene ether (O-10):propylene oxide propyl alkyl phenyl polyether ammonium sulfate (V-20S) of 1.5:1:1 at 6 wt %. The larger solubility parameter differences between monomers and disperse dyes could improve color yield of the washing-free printed polyester fabric to a greater extent. At the mass ratio of EHA and MMA of 11:9 (55 wt % EHA), PA achieved the best mechanical and washing-free printing properties and surpassed the commercial binders.
研究领域:
材料科学
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纺织工程
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高分子化学
✓ 已验证
产品关联
DOI
高影响因子
POLYMER
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2025
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IF 4.5
Jinqi Ye,Nasha Zeng,Lili Wang,Keying Zheng,Junyi Lu,Minghua Wu
Disperse dyes wash-free inkjet-dyeing is one of the important research and development directions to achieve clean dyeing of polyester fabrics. Wash-free binders are needed to be designed with a special molecular structure to achieve good colour yield and fixation during dyeing. Specifically, isophorone diisocyanate and polypropylene glycol were used as the monomers of the hard and soft chain segments of the polymer, respectively, and KH-560 as the capping agent, to prepare a series of end-group cross-linked organosilicon modified waterborne polyurethane (SWPU). It was applied as wash-free binder for the digital inkjet-dyed polyester fabrics. The results showed that, for 2 wt% KH-560 and 40 wt% hard chain segments, the SWPU film had good water resistance, mechanical properties, and adhesion properties, and the best dispersed dye directional effect. With the addition of SWPU in the dye ink of 8 wt%, the front K/S value of the SWPU wash-free digital inkjet-dyes fabric reached 16.86, and the dry/wet rubbing fastness achieved grades 4–5 and 3–4, respectively. Compared with the pure dye inkjet-dyed fabric, its front K/S value increased by 23.9 %, and its dry/wet rubbing fastness improved by grades 1 and 0.5, respectively.
研究领域:
高分子科学
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纺织化学
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材料科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
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2024
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IF 6.5
Lili Wang,Huixian Dong,Keying Zheng,Nasha Zeng,Yinhe Duan,Xi Wang,Minghua Wu
Future developments in the printing and dyeing industry will involve greenisation and personalisation. Less/no water digital technology has drawn much attention over traditional printing and dyeing for reducing carbon and emissions. Based on the solubility parameter difference between disperse dyes and monomers, divinyl polysiloxane modified polyacrylate (PSMA) with the directional migration effect for disperse dyes was prepared herein via mini-emulsion polymerisation. PSMA was used as wash-free polymer additive in the digital jet dyeing of polyester fabrics with disperse dyes, which yielded wash-free dyed fabrics with high color yield and color fastness. The results showed that PSMA achieved the optimum overall performance at a molar ratio of octamethylcyclotetrasiloxane to 1,3-divinyltetramethyldisiloxane 44:1 and divinyl polysiloxane dosage of 4 wt%. PSMA had the best tensile properties, good flexibility, certain hydrophobicity and high directional migration of disperse dyes. When the PSMA dosage was 9 wt% in the wash-free ink, the front and back color yield of the wash-free dyed fabric were 18.23 and 13.56, respectively. Compared with the fabric dyed with pure liquid disperse red, the front color yield of the wash-free dyed fabric increased by about 35.2 % and the back color yield had a little change. Its color fastness to dry/wet rubbing were improved from grade 3 to 4 and from grade 2–3 to 3, respectively. The handle of the wash-free dyed fabric basically maintained the level of original fabric.
研究领域:
纺织工程
·
材料科学
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染整技术
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）