Macromolecular colorants are a new type of colored macromolecular polymers formed by introducing coloring groups into the main chain or side chain of macromolecules through certain chemical reactions. They have many advantages such as high safety and non-absorbability by the human body, and are a kind of environmentally friendly products that can save energy, reduce emissions and lower consumption. Since its synthesis,polymer dyehave always been regarded as a type of functional colored macromolecular compound. They not only possess the light absorption properties of small molecule colorants, but also exhibit the stability of polymers. This combination endows the macromolecular colorants with dual functions: namely, the large molecular size, high strength, easy film-forming property, solvent resistance, migration resistance, heat resistance, processability, as well as the strong absorption of light and the color diversity of the organic colorants. In recent years, the research on macromolecular colorants has made rapid progress and has now become a new field in functional polymers andcolor chemistry. Macromolecular colorants not only possess the general functions of small molecule colorants, but also have many special advantages. For example, when the polymer framework is combined with traditional food pigments, and the molecular weight reaches above 3000, it will not be absorbed by the human digestive system. It will be excreted through the intestines and will not cause harm to the human body, making it safer. The coloring agent raw material is a functional raw material and has the following advantages: Good resistance to migration. The large molecule colorants do not undergo molecular migration in the dyed substances, thus avoiding color mixing contamination. Excellent heat resistance. The non-volatile and high melting point nature of the large molecule, combined with its low solubility at high temperatures, makes it have better heat resistance. High safety. The large molecular chain size makes it unable to penetrate the skin and will not be absorbed by the human body, achieving the safety level for oral use. Strong resistance to solvents. The large molecule colorants do not dissolve in most common solvents or have very low solubility, making them less prone to fading. Good compatibility. The molecular framework used is the same as that of the dyed high molecular materials, significantly improving compatibility. Green and environmentally friendly. The water-based high molecular materials are prepared based on water-based high molecular synthesis technology, truly achieving green and environmentally friendly properties. Anhui Sinograce Chemical's large molecule colorants are safe and environmentally friendly, dedicated to being a color chemical manufacturer.

PF-600 Certified for Food Contact (GB 4806.10-2023), PF-609 Achieves 12,000 Abrasion Cycles (ISO 10545-7) Anhui Sinograce Chemical Co., Ltd. today announced the upgraded PF Series of high-performance non-stick coatings, delivering tailored solutions for two critical industries: PF-600 Food-Grade Coating: Meeting the most stringent cookware safety standards PF-609 Industrial Coating: Revolutionizing textile roller maintenance cycles 1. PF-600: Redefining Safety in Cookware Developed with proprietary Fluoro-Silicon Hybrid Technology ✅ Certifications & Compliance: GB 4806.10-2023 (China food contact material standard) LFGB Sections 30 & 31 (EU food safety) PFOA/PFOS-free (SGS Test Report ) ✅ Performance Highlights: Heat resistance: 260°C continuous use (300°C peak) Adhesion: Grade 0 (per GB/T 9286-1998 cross-cut test) Abrasion resistance: 10,000 steel wool cycles (3x industry avg.) Case Study: A leading cookware brand using PF-600 reported: • 100% pass rate in product inspections (vs. 92% previously) • 76% reduction in customer complaints (2024 Q2 quality report) 2. PF-609: The Textile Industry’s Cost-Saving Breakthrough Addressing roller wear challenges, PF-609 delivers:

Functional acrylic resin For PET transfer film coating: release layer + coloring layer (two-in-one), which is both the release layer and the coloring layer. It has good PET stripping performance and can replace the release agent of wax or silicone resin. Basic Data Product Description Functional acrylic resin Solid (effective) content :(±2%) 45 Appearance Semi-translucent liquid Features Good temperature resistance Good leveling performance Good stripping Adjustable and controllable tightness, good slitting performance Water-borne, environmentally friendly High transparency, high brightness, high gloss Excellent adhesion with UV flexo ink (gravure ink LED light curing ink, etc.) Applicatiopn Waterborne printing transfer coating resin emulsion Sinograce Chemical has been established for over 15 years and is dedicated to the research and development, production, sales and application promotion of high-tech functional materials. Its main products include: water-based emulsions, water-based resin dispersions, water-soluble resins, water-based ink binders, alcohol-soluble resins, water-based resins, innovative functional acrylic resins and functional additives, and other new and characteristic functional materials.

Water-based ink is mainly a uniform paste composed of binders, pigments, additives and other substances. The binder is the core component of water-based ink. It not only serves to disperse colorants but is also a key factor influencing the performance of ink, determining its adhesion, water resistance, washability and solvent resistance, among other properties. There are three common types of water-based ink binders, namely water-soluble resins, water-soluble sol resins and water-dispersed resins. Their properties vary. In the process of ink formulation, the three resins are usually compounded for use. Water-soluble resins can dissolve in water but have poor water resistance. Water-based inks prepared with such resins cannot be applied in environments that come into direct contact with water, and their application is restricted. Therefore, water-soluble resins cannot be used as the main raw material for water-based ink binders. Due to its advantages such as low relative molecular weight, small particles and good uniformity, it is mainly used to adjust the viscosity and fluidity of water-based inks and disperse pigments. Water-soluble sol resin is prepared by neutralizing acidic resin with low-molecular-weight amines to form salts and generate hydrophilic groups. It can also be called alkali-soluble resin. This resin has a fast drying and film-forming speed. This type of resin includes shellac, ethyl carbamate resin, waterborne amino resin and water-soluble acrylic resin. Water-dispersed resin is also known as emulsion resin. Using this type of resin as the water-based binder, the ink has good dilutability, fast drying speed, excellent water resistance of the coating film, and the emulsion has low viscosity and high solid content, which can form high-performance coatings. However, water-based inks prepared with emulsion resins have the disadvantages of poor resolubility and difficulty in cleaning. The formula of water-based printing ink is generally composed of acrylate copolymer emulsion, solid acrylic resin, pigments, wetting agents and defoamers. Acrylate copolymer emulsion is the main binder, and solid acrylic resin serves as the pigment dispersant, also known as the dispersion resin. The solid acrylic resins used are mostly alkali-soluble resins, which contain about 30% acrylic acid or methacrylic acid in their composition. They dissolve in alkali and immediately convert into macromolecular surfactants with emulsifying, wetting and dispersing functions. They have excellent adhesion to a variety of low-polarity substrates such as PE films, PP films and aluminum-coated films. Therefore, solid acrylic resin is an important functional additive throughout the entire water-based ink preparation process. It is not only widely used in the preparation of emulsion binders but also in considerable amounts during the ink formulation process. Another major function of waterborne solid acrylic resin is to provide dispersibility for a variety of difficult-t...