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Technical notes from the lab.

Formulations, application guidance and product chemistry, written for the people who use these materials in production.

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What Technical Documents Should You Check When Importing Dyes and Pigments From China?

26 Oct 2026Pigments & Colorants

What Technical Documents Should You Check When Importing Dyes and Pigments From China?

When importing dyes and pigments from China, confirm four types of documents: the technical data sheet, which tells you whether a grade will work; the certificate of analysis, which proves that a specific batch meets specification; the safety data sheet, which supports safe transport and safe handling in your plant; and the documents required for customs clearance and for the regulations of the target market. The product name, CAS number, batch number and codes must match across all of them.

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Why Does a Reliable Supplier Matter More Than Price When You Buy Chemicals in Bulk?

26 Oct 2026Pigments & Colorants

Why Does a Reliable Supplier Matter More Than Price When You Buy Chemicals in Bulk?

When you buy in bulk, the unit price is only part of the total cost. Batch consistency, on-time delivery, and proper documentation and technical support determine whether formulas need adjusting, whether production lines stop and whether you keep your customers, and together these costs often exceed the savings on price.

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How Do You Know If a Biocide Is Right for a Water-Based Formulation?

19 Oct 2026Functional Chemicals

How Do You Know If a Biocide Is Right for a Water-Based Formulation?

To judge whether a biocide suits a water-based formulation, check whether the active ingredient stays stable at the product's pH and process temperature, whether formulation components consume it, whether its spectrum covers the microorganisms actually contaminating the product, and whether it meets the regulations of the target market. Then confirm the choice with residue testing after storage and a challenge test.

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What Do ISO 9001 and ISO 14001 Certifications Mean When Buying Dyes and Pigments?

19 Oct 2026Pigments & Colorants

What Do ISO 9001 and ISO 14001 Certifications Mean When Buying Dyes and Pigments?

ISO 9001 certifies a supplier's quality management system, and ISO 14001 certifies its environmental management system; both address how the organization operates. Whether a dye or pigment meets specification and can be sold into a given market has to be confirmed with certificates of analysis, safety data sheets and test reports.

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What Are Industrial Biocides, and How Do They Extend Product Shelf Life?

12 Oct 2026Functional Chemicals

What Are Industrial Biocides, and How Do They Extend Product Shelf Life?

Industrial biocides are chemicals added to waterborne products and industrial water to kill or inhibit bacteria, yeasts and molds. They stop microorganisms from breaking down formulation components during storage and use, keeping viscosity, odor and color stable and thereby extending shelf life.

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What Role Do Functional Chemicals Play in Consumer and Industrial Formulations?

12 Oct 2026Functional Chemicals

What Role Do Functional Chemicals Play in Consumer and Industrial Formulations?

Functional chemicals usually make up a small share of a formulation, yet they determine whether the product delivers the function it was designed for, handling tasks such as cleaning and emulsifying, softening and antistatic action, flocculation, preservation and catalysis. They interact with one another, so they have to be evaluated against the system as a whole when they are selected.

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How Do You Choose the Right UV Stabilizer for Each Plastic Application?

05 Oct 2026Performance Additives

How Do You Choose the Right UV Stabilizer for Each Plastic Application?

Plastic UV stabilizers fall into two main classes, UV absorbers and hindered amine light stabilizers, and each protects the product in a different way. Selection starts with the product's thickness, transparency, processing temperature and service environment, and then moves on to the stabilizer system and the specific grades.

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What Are Defoamers, and Why Are They Essential in Coatings Production?

05 Oct 2026Performance Additives

What Are Defoamers, and Why Are They Essential in Coatings Production?

Defoamers are additives that break down and suppress foam, eliminating the bubbles that coatings pick up during production, filling and application and preventing pinholes, craters and loss of gloss. They must stay suitably incompatible with the system, and the type, the addition stage and the dosage all have to be determined by testing.

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What Are Plastic Antioxidants, and Why Do Plastic Products Need Them?

28 Sept 2026Performance Additives

What Are Plastic Antioxidants, and Why Do Plastic Products Need Them?

Plastic antioxidants are additives blended into polymers to interrupt the chain reaction of thermo-oxidative aging. They protect the melt from degrading during processing and slow down embrittlement, yellowing and cracking during storage and use. They are used in very small amounts, yet they decide how long a plastic product lasts.

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What Do Leveling Agents Do in Coatings and Inks?

28 Sept 2026Performance Additives

What Do Leveling Agents Do in Coatings and Inks?

Leveling agents are additives that adjust the surface tension of the wet film, letting coatings and inks flow out smooth before they dry, eliminating orange peel, brush marks, craters and floating, and raising gloss. They are used in very small amounts, and choosing the right type and dosage directly decides film appearance and recoat performance.

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Why Do Lightfastness and Weather Resistance Matter So Much in Outdoor Applications?

21 Sept 2026Pigments & Colorants

Why Do Lightfastness and Weather Resistance Matter So Much in Outdoor Applications?

Lightfastness is a pigment's ability to hold its color under light; weather resistance is its ability to hold color and performance under light, heat, moisture and oxygen acting together. The color life of any outdoor product is decided by these two properties, and neither of them can be seen on a laboratory draw-down.

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What Common Quality Problems Are Caused by Poor Dispersion of Industrial Pigments?

21 Sept 2026Pigments & Colorants

What Common Quality Problems Are Caused by Poor Dispersion of Industrial Pigments?

Poor pigment dispersion shows up directly as low tinting strength, batch-to-batch color variation, flooding and floating, specks and seeds, loss of gloss and coarsening or settling in storage. The root of these problems lies not in the color itself but in whether the pigment particles were properly wetted, deagglomerated and stabilized.

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What Are the Advantages of Organic vs. Inorganic Pigments in Plastic Coloring?

14 Sept 2026Pigments & Colorants

What Are the Advantages of Organic vs. Inorganic Pigments in Plastic Coloring?

Organic pigments bring high tinting strength and vivid shade, while inorganic pigments bring hiding power and solid heat and weathering resistance; the starting point for selection is always the service environment of the part and the service life expected from it, with price as only one variable among several.

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What Is Titanium Dioxide (TiO2), and What Does It Do in a Pigment Formulation?

14 Sept 2026Pigments & Colorants

What Is Titanium Dioxide (TiO2), and What Does It Do in a Pigment Formulation?

Titanium dioxide is the white pigment with the highest refractive index and the strongest hiding power, and in a formulation it delivers opacity, whiteness and weathering performance at the same time; the wrong crystal form chalks within the first outdoor year, and pushing the loading past its critical point drives cost up and performance down together.

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Why Does the Same Dye Lot Produce Different Shades Between Dyeing Batches?

08 Sept 2026Textile Chemistry

Why Does the Same Dye Lot Produce Different Shades Between Dyeing Batches?

When one dye lot comes out a different shade from batch to batch, the cause is usually not the dye itself but the process variables that shift on every run: the temperature curve, the water, and the liquor ratio.

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What Is Digital Printing Dye, and How Is It Different From Traditional Printing Dye?

08 Sept 2026Textile Chemistry

What Is Digital Printing Dye, and How Is It Different From Traditional Printing Dye?

Digital printing dye has to reach submicron dispersion, with far tighter filtration and viscosity control than traditional printing dye; reaching for a conventional grade in a pinch is what permanently blocks a print head.

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What Is the Difference Between Disperse Dyes and Reactive Dyes?

02 Sept 2026Textile Chemistry

What Is the Difference Between Disperse Dyes and Reactive Dyes?

Disperse and reactive dyes color completely different fibers, and choosing the wrong type leads to uneven shade or fast fading, especially on polyester-cotton blend fabrics.

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What Are Dyeing Auxiliaries, and Why Are They Essential to the Dyeing Process?

02 Sept 2026Textile Chemistry

What Are Dyeing Auxiliaries, and Why Are They Essential to the Dyeing Process?

Dyeing auxiliaries carry no color of their own, but they determine whether a dye attaches to the fiber evenly and stably; leveling agents, fixing agents and dispersing agents each solve a different stage of the process, and none of them is optional.

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