CN107325647B - 一种以水性色浆为原料制备色膏的方法 - Google Patents

一种以水性色浆为原料制备色膏的方法 Download PDF

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CN107325647B
CN107325647B CN201710598175.0A CN201710598175A CN107325647B CN 107325647 B CN107325647 B CN 107325647B CN 201710598175 A CN201710598175 A CN 201710598175A CN 107325647 B CN107325647 B CN 107325647B
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张伟禄
蔡芳芳
张鸿人
张鸿慧
张晓霞
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Wenzhou University
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    • D06P1/00General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
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    • D06P1/64General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
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Abstract

本发明公开一种以水性色浆为原料制备色膏的方法,水性色浆包括以下组分(以质量百分比计):保湿剂1‑3%;颜料30‑40%;分散剂5‑15%;防腐剂0.2‑0.5%;去离子水余量。将所述水性色浆投入高压均质机中,经均质后得到水性色膏产品。本发明的优点是:以水性色浆为原料,通过一步均质工艺制备色膏,该方法适用于色浆生产厂家直接使用色浆制备色膏,既可节省生产时间和成本,也可迅速满足供货需求。

Description

一种以水性色浆为原料制备色膏的方法
技术领域
本发明涉及一种合成革用色膏,特别是一种以水性色浆为原料制备色膏的方法。
背景技术
传统方法制备色浆和色膏时,需要分别装配两套设备。色浆的生产一般使用高速分散机和砂磨机(或称研磨机);而色膏一般使用普通分散机和三辊研磨机。使用三辊研磨机生产色膏所需时间长、效率低。如色浆生产企业需新增色膏产品,需要另行采购三辊研磨机或需要调整配方,从头开始。
发明内容
为了克服上述缺陷,本发明实施例所要解决的技术问题在于,提供一种可直接生产色膏的水性色浆,采用均质工艺可一步生产色膏。
本发明的第二个目的是提供了一种水性色浆的制备方法。
本发明的第三个目的是提供了一种水性色膏的制备方法。
为实现本发明的第一个目的,本发明的技术方案是包括有以下组分,以质量百分比计:
保湿剂 1-3%;
颜料 30-40%;
分散剂 10-20%;
防腐剂 0.2-0.5%;
去离子水 补充至100%。
进一步设置是所述的保湿剂为丙三醇、丙二醇、一缩二乙二醇、木糖醇、聚乙二醇或山梨糖醇中的一种或多种组合。
进一步设置是所述的炭黑颜料为色素炭黑或橡胶炭黑。
进一步设置是所述的分散剂是多元醇的脂肪酸酯类或脂肪醇聚氧乙烯醚系列非离子表面活性剂,进一步所述的分散剂为吐温系列如吐温-80、吐温-60、吐温-20等,或平平加系列如O-15、O-20、O-25、O-30、O-35。
进一步设置是所用的分散剂比行业中常规使用量过量100-200%,以质量百分比计。在传统的水性色浆的分散剂行业中常规使用量一般为3-6.6wt%左右或者3%以下。
进一步设置是所述的防腐剂为苯甲酸钠、布罗波尔或凯松中的一种。
实现本发明的第二个目的,其技术方案是按照水性色浆的所述的组分配比,向容器中加入去离子水,然后投入分散剂,搅拌均匀后加入颜料,高速分散后再加入保湿剂和防腐剂,继续搅拌均匀后转移至研磨机中,研磨2-4小时后得到水性色浆产品。
实现本发明的第三个目的,其技术方案是将所述水性色浆投入高压均质机中,压力设定为35MPa-50MPa,均质后得到水性色膏产品。
本发明的创新机理和有益效果是:
本发明采用过量的(100-200%)非离子表面活性剂作为色浆颜料的分散剂制备水性色浆,并以此色浆为原料,通过一步均质工艺制备色膏。适用于色浆生产厂家直接使用色浆制备色膏,既节省生产时间和成本,也可迅速满足供货需求。
使用色浆制备色膏的可行性在于:在色浆的均质过程中,颜料颗粒的粒径变小,比表面积增大,吸附了更多的分散剂,导致体系中分散剂的数量减少(因此配方中需要过量分散剂),体系的黏度增加,流动性降低;因此,通过均质工艺过程,色浆的黏度可由5000mPa.s上升至15000 mPa.s,满足色膏使用的要求,从而实现从色浆到色膏的转变。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚,下面将对本发明作进一步地详细描述。
实施例1-3
通过下表表征水性色浆实施例1-3各组分比例,以占体系总重量的质量百分比计:
Figure DEST_PATH_IMAGE002
水性色浆的制备方法
按照上述实施例1-3所述的组分配比,向容器中加入去离子水,然后投入分散剂,搅拌均匀后加入颜料,高速分散后加入保湿剂和防腐剂,继续搅拌后转移至研磨机中,研磨2-4小时后得到水性色浆产品。
水性色膏的制备方法
将通过实施例1-3所制备的水性色浆投入高压均质机中,压力设定为35MPa-50MPa,均质后得到水性色膏产品。
水性色浆、色膏的稳定性可通过以下方法进行检测:
在50.0mL玻璃试管中,加入20.0g实施例1-3的水性无树脂色浆。放置在50℃的烘箱中保持7天,取出恢复至室温后用激光粒度仪检测粒径分布。如果放置前后实施例1-3水性无树脂色浆的粒径分布基本无变化,则说明色浆的储存稳定性良好。如果粒径分布发生变化,则说明色浆的储存稳定性不佳。实施例1色浆、色膏检测前的平均粒径分别为6.50μm、0.20μm,实施例1色浆、色膏检测后的平均粒径分别为6.30μm、0.15μm;实施例2色浆、色膏检测前的平均粒径分别为6.70μm、0.18μm,实施例2色浆、色膏检测后的平均粒径分别为6.60μm、0.17μm;实施例3色浆、色膏检测前的平均粒径分别为5.50μm、0.12μm,实施例3色浆、色膏检测后的平均粒径分别为5.30μm、0.12μm;
以上所揭露的仅为本发明较佳实施例而已,当然不能以此来限定本发明之权利范围,因此依本发明权利要求所作的等同变化,仍属本发明所涵盖的范围。

Claims (1)

1.一种水性色膏的制备方法,其特征在于:将水性色浆投入高压均质机中,压力设定为35MPa-50MPa,均质后得到水性色膏产品,所述的水性色浆包括有以下组分,以质量百分比计:
保湿剂 1-3%;
炭黑颜料 30-40%;
分散剂 10-20%;
防腐剂 0.2-0.5%;
去离子水 补充至100%;
所述的分散剂为吐温-80、吐温-60、吐温-20、平平加O-15、平平加O-20、平平加O-25、平平加O-30或平平加O-35。
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