Red water based pigment paste without resin， eco-friendly water based pigment paste for textile dyeing

1. Product Introduction

CAISON brand 8 series generic water based pigment paste is suitable for screen printing and tinting of non-apparel fabrics of cotton, linen, polyester, acrylic and various blended fabrics (Please check and use our CTH series eco-friendly pigment paste products if directly contacting with skin textile products needed). Also these liquid water based pigment paste can be used for tinting of other water based system materials, such as wood, paper, building coatings, cement, industrial detergents and so on. 8 series generic water based pigment paste is developed for the applications of non-apparel fabrics, including 36 colors in total, and complete chromatogram, covering almost the whole colors space (please check the 8 series color swatch). We can design and prepare the special colors according to the customer’s demand.

2. Product Characteristics

1). Super concentrated pigment paste with high pigment content: strong coloring power, better color showing and economical, is suitable for a variety of water-based paints coloring (including interior and exterior latex paints).

2). Excellent application performance, can be used for coloring a variety of water based systems with higher requirement (high weather resistance, high light fastness, high covering power), such as architectural coatings, industrial coatings, furniture paints and other specialty coatings. 

3). This series water based pigment paste is no-resin system pigment paste, can avoid non-compatibility problems happened between resin and resin. It has versatility of water-based systems, can be used for coloring a variety of water based paints, such as water-based decorative paints, latex paints and other coatings with aqueous alkyd、acrylic、polyurethane、 alkyd - acrylic、 epoxy、amino - alkyd、polyester resin and modified resins.

4). Good light fastness and weather resistance, to ensure the best performance of interior paints and etc.

5). Fine and uniform fineness, higher coloring power and complete chromatography.

3. Product Using Instructions

1). Please stir pigment paste before use; If some deposition appears after a long term storage, the products can be used through fully stirring and filtrating;

2). If finding that 8501 black pigment paste reacts with the thickening agent (presented flocculent), recommending to use 8503 Black pigment paste.

3). Red color and brown color would be easily cause discoloration when smaller adding amount, please pay more attention to it when using, and making small sample testing before mass production.

4). Any safe question in using, please refer to corresponding MSDS.

Introduction of water based black pigment paste

Carbon black is very important and very common inorganic black pigment, which is widely used for inks, coatings, printing and dyeing applications. However,  special carbon molecular structure of carbon black leads to difficult to disperse and easy to agglomerate. So how to promote the good dispersion of carbon black in water based black pigment paste is one important research topic in the research of Shanghai Caison Technology Department.  

The choice of dispersant and addtition amount suitable for carbon black molecular is one of important conditions which is to ensure good dispersion in black pigment paste. According to the experimental results, we know that anionic dispersant with low molecular weight is more suitable for carbon black molecules dispersed in water based black pigment paste. The appropriate dispersing equipment and process is also necessary condition for good dispersion of carbon black. For example, stirring, cutting, grinding baht, are key parameters. 

How to determine the dispersion of water based black pigment paste is excellent ot not?  We can detect the centrifugal stability of the carbon black pigment paste, and check the storage stability at the condition of 50 to 55 degrees Celsius. The study results done by Shanghai Caison technical staff shows that the dispersion of carbon black is good when the particles distribution is very uniform. Particles distribution of CAISON brand water based black pigment paste is not only uniform, but also the average particle size is about 1um. It can be used for textile screen printing, textile pigment dyeing, architectural coatings coloring, natural latex tinting, daily necessities coloring, paper coating and etc. Its applications are extremely wide, and storage stability is more than two years.