基于纖維素納米球分散劑的數(shù)碼印花墨水的制備及其性能研究

沈靜　張梅飛　馬廷方　余厚詠　姚菊明

摘 要：采用混酸法制備纖維素納米球，并以其為分散劑，通過與其他助劑混合制得性能優(yōu)良、分散穩(wěn)定的數(shù)碼印花墨水。掃描電鏡顯示，混酸法制備的纖維素納米球的粒徑在50 nm左右，Zeta電位儀測定其具有較高的電負性。將其與活性墨水及其他助劑混合，正交試驗結(jié)果表明，纖維素納米球?qū)δ酿ざ燃半妼势鸬街匾挠绊懽饔谩⑵渑c商用墨水進行對比，可以發(fā)現(xiàn)自主配制的數(shù)碼印花墨水在黏度、電導率及Zeta點位等性能指標上均優(yōu)于普通商用墨水。

關(guān)鍵詞：纖維素;分散劑;數(shù)碼印花;墨水

中圖分類號：TS194.434

文獻標志碼：A

文章編號：1009-265X（2019）03-0069-04

Preparation and Properties of Digital Printing Inks Basedon the Cellulose Nanoparticles as Dispersant

SHEN Jing1，2， ZHANG Meifei1， MA Tingfang1， YU Houyong2， YAO Juming2

（1.Hangzhou Wensli Silk Science & Technology Co.， Ltd.， Hangzhou 310021， China;2.College of Materials and Textiles， Zhejiang Sci-Tech University， Hangzhou 310018， China）

Abstract：The cellulose nanoparticles were prepared by mixed acid method， and they were used as the dispersant to prepare the digital printing ink with good properties and dispersion stability by mixing with other additives. Scanning electron microscope result showed that the particle size of the cellulose nanoparticles prepared by the mixed acid method was about 50 nm， and the cellulose nanoparticles had high electronegativity according to Zeta potentiometer test. After the cellulose nanoparticles were mixed with other additives， the orthogonal testing results showed that the cellulose nanoparticles played an important role for the viscosity and conductivity of the inks. Compared with the commercial inks， the inks prepared in this study have the good properties such as the viscosity， conductivity and Zeta potential.

Key words：cellulose; dispersant; digital ink-jet printing; ink

紡織品噴墨印花技術(shù)是一種新型的印花方式，它摒棄了傳統(tǒng)印花中制版這一復雜環(huán)節(jié)，而是將經(jīng)過數(shù)字化處理的圖片輸入計算機，經(jīng)計算機印花分色系統(tǒng)編輯處理后，通過噴墨印花系統(tǒng)，將專用墨水直接噴印到各種織物上，從而在織物上得到滿足設計要求的印花織物[1]。其工藝流程簡單，具有小批量、高精度、多品種、快速反應等優(yōu)點，是21世紀紡織品印花的全新發(fā)展方向。

印花墨水的配制是數(shù)碼印花技術(shù)的一個關(guān)鍵工序，用于數(shù)碼印花的墨水必須滿足一定的物理及化學標準[2-3]。性能優(yōu)良的墨水不僅決定了織物表面印花圖案的效果，也決定了噴嘴噴出液滴的形狀及印花系統(tǒng)的穩(wěn)定性[3]。目前，數(shù)碼印花的墨水主要依賴國外公司進口，其價格普遍較高，且墨水的各項性能對織物表面的數(shù)碼印花仍然具有一定的限制。……