Purpose

In this study, it is aimed to synthesize ultraviolet (UV)-curable water-borne polyurethane acrylate (WPUA) binders using different types of polyols (poly (propylene glycol), PPG₁₀₀₀ and PPG₂₀₀₀ and poly (ethylene glycol), PEG₁₀₀₀ and PEG₂₀₀₀) at different molecular weights, DMPA (2,2-bis(hydroxymethyl) propionic acid) at different amounts and isophorone diisocyanate (IPDI) and use for pigment printing on synthetic leather.

Design/methodology/approach

UV-cured films were characterized by Fourier transform infrared spectroscopy (FTIR) and differential scanning calorimeter (DSC). The effect of binder structure on printing performance was determined with hardness, crock fastness, abrasion resistance and color measurements.

Findings

The highest abrasion resistance (60,000 cycles) and crock fastness values (dry crock and wet crock: 3/4) were obtained with binder PEG-C synthesized with PEG₂₀₀₀ and lower DMPA amount of 4.89 wt%; however, PEG-C binder showed lower hardness values. Due to lower urethane groups in PEG-C binder, more flexible films were obtained which imparted good adhesion property to printing film. Synthesized binders provided lower crock fastness and abrasion resistance properties than commercial WPUA binder.

Originality/value

Pigmented formulations including UV-curable water-borne synthesized PUA binder were developed and for the first time applied onto synthetic leather using screen printing method. Within this context, a new environmentally friendly printing method was proposed in this study including binder synthesis in the preparation of printing formulations.

中文翻译：

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紫外光固化型水性聚氨酯丙烯酸酯粘合剂的合成及其在合成皮革上进行颜料印花的性能比较

目的

在这项研究中，其目的是使用不同类型的多元醇（聚丙二醇，PPG ₁₀₀₀和PPG ₂₀₀₀以及聚乙二醇，PEG ₁₀₀₀）合成紫外线（UV）固化的水性聚氨酯丙烯酸酯（WPUA）粘合剂。和不同分子量的PEG ₂₀₀₀），不同量的DMPA（2,2-双（羟甲基）丙酸）和异佛尔酮二异氰酸酯（IPDI），并用于合成皮革上的颜料印刷。

设计/方法/方法

通过傅立叶变换红外光谱（FTIR）和差示扫描量热仪（DSC）对UV固化的膜进行表征。粘合剂结构对印刷性能的影响通过硬度，耐摩擦牢度，耐磨性和颜色测量来确定。

发现

使用由PEG ₂₀₀₀合成的粘合剂PEG-C和更低的DMPA量为4.89 wt％，可获得最高的耐磨性（60,000个循环）和摩擦牢度值（干摩擦和湿摩擦：3/4）；然而，PEG-C粘合剂显示出较低的硬度值。由于PEG-C粘合剂中较低的氨基甲酸酯基团，获得了更柔软的膜，其赋予了印刷膜良好的粘附性。合成的粘合剂比商用WPUA粘合剂具有更低的耐摩擦牢度和耐磨性。

创意/价值

开发了包含紫外线可固化的水性合成PUA粘合剂的颜料配方，并首次通过丝网印刷方法应用于合成皮革。在此背景下，本研究提出了一种新的环保印刷方法，包括在印刷配方的制备中包括粘合剂的合成。