PLA Color Masterbatch Procurement Guide: From Demand Confirmation to Stable Application 

PLA (Poly Lactic Acid), as a biobased and degradable material, is gradually expanding its application in fields such as fibers, non-woven fabrics, and packaging. The PLA Color Masterbatch is specially designed for coloring, which not only needs to meet the color requirements but also needs to take into account the processing characteristics and environmental protection positioning of PLA. Below, we will summarize several points to pay attention to when purchasing. 

Step 1: Verify the compatibility between the process and the substrate 

The PLA is highly sensitive to processing temperature and humidity. Choosing the wrong masterbatch may result in breakage during spinning, thermal degradation, or brittle products. 

Confirm PLA substrate grade: Different grades of PLA (such as differences in melt index and crystallization rate) have different adaptabilities to the matrix. The supplier needs to match the carrier according to your specific PLA grade to ensure good compatibility. 

Specify the processing method: is it melt-spun fiber, non-woven fabric (spunbond/meltblown), injection molding or extruded film material? Different processes have different requirements for the heat resistance grade, dispersion fineness and addition ratio of the masterbatch. For example, for fine denier spinning, the pigment particle size in the masterbatch needs to be small enough to reduce broken fibers and filter screen blockage. 

Pay attention to the processing temperature range: The processing temperature of PLA is usually lower than that of polyester. The pigments and dispersants used in the masterbatch must remain stable within this temperature range, without decomposing or migrating. 

Step 2: Evaluate color, function and compliance 

Color accuracy: Provide a physical color chart or Pantone numbers. The proofing of PLA masterbatch may need to take into account the influence of the transparent base color of the substrate on the light color tones. 

Functional masterbatch requirements: If you need functions such as anti-hydrolysis, toughness improvement, anti-static, or flame retardancy, these can all be added together in the coloring masterbatch. For PLA, anti-hydrolysis agents are often important additives that extend its processing and service life. 

Biodegradability and Compliance: The PLA Color Masterbatch used for biodegradable products should have a carrier and pigments that do not significantly affect the biodegradability rate of the final product. Additionally, if it comes into contact with food or skin (such as tableware, non-woven fabric), it is necessary to confirm that the masterbatch complies with relevant regulations (such as food contact grade, skin irritation test). 

Sample testing suggestions: Conduct small-scale trial spinning or trial production on your actual production line. This is the most direct method to verify the dispersion of the masterbatch, the stability of the color, and the impact on the molecular weight (or melt index) of PLA. 

Summary and Selection Suggestions 

When purchasing PLA Color Masterbatch, it is recommended to communicate in the following order: 

Provide details of the base material: PLA grade, processing method (spinning/non-woven fabric/molding, etc.), and final application (whether it comes into contact with food/skin). 

Clarify color and function: Provide a color palette or Pantone number, and indicate whether additional features such as water resistance or anti-static properties are required. 

Carry out on-machine verification: Conduct small-scale trial production to confirm the smoothness of spinning/processing and the performance of the finished product, ensuring they meet the expected standards. 

Jiangsu Meizilin Nano Technology Co., Ltd. uses nanotechnology to develop and produce color and functional masterbatches for PLA, PET, PA, PP, PE and other base materials. We can provide targeted technical solutions. Please feel free to communicate your requirements and request sample tests. 

Official website: http://www.mizlion.cn 

Contact person: Mr. Ni  Mobile phone: 13805103263 

Telephone: 0515-88322183 

Email: risen@risencolor.com 

Address: No. 1, Honghua Road, Southeast Industrial Park, Yantong Town, Tinghu District, Yancheng City, Jiangsu Province