China Pet Bottle manufacturers reach your expectations

1) Understand the difference between colorants: just like the base resin, not all resin colorants are the same. When used with different resins, different quality colorants can produce different results, resulting in an imperfect appearance or worse damage to the finished part of the Pet Preform Mould. Here are some colorant qualities to watch out for:
Carrier Material: The “carrier” of the colorant is a substance that binds or holds the colorant together. This is an irrelevant material because it has no other use; however, it can play an important role in the appearance and quality of the finished product. See the following points for more information.
Mixing ratio: Depending on the colorant, carrier and base resin, the initial mixture should have a certain ratio – typically 3 – 5 pounds of colorant per 100 pounds of base resin. It is also important to note the percentage of carrier material in the colorant – this material typically accounts for 1% – 3 % of the finished product. If this ratio does not exist, you may have appearance problems like vortexes, streaks, and bumps. Improper mixing can also create unexpected performance problems in the finished product.
Colorant Material: Just like the carrier material, it is important to ensure that the colorant material is compatible with the base resin.
2) Resin compatibility: As mentioned above, it is important to discuss this issue specifically to further explore why compatibility between the resin, colorant and carrier is so important.
Resin
Resins are typically formulated for a specific set of performance attributes, usually at the molecular level. The introduction of foreign elements into the resin mixture – in this case, the two elements, the colorant and the carrier – can affect the desired properties, especially when these materials react adversely to each other.
For example, incompatible colorant materials can alter the upper and lower temperature tolerances of the resin. They change the flexibility and hardness of the resin and allow it to react differently to moisture and humidity. Incompatible resin and colorant blends are easier to dry and more prone to flaking and cracking – at best it’s a cosmetic problem and, worse, an imminent danger.
In addition to the reaction between the materials, the quality of the physical mixture may also vary, usually in the same manner as described above. Basically, the base resin is being diluted by the colorant, so it is important to either plan and adjust the formulation for this purpose, or to ensure that the colorant is compatible with the resin and, when used together, will adhere to the desired results.
3) Certification or other grading purposes: As a more specific example, let us detail the use in the case of certification or grading, such as medical or food. Other certifications such as quality, safety and green issues can also fall under this umbrella.
As mentioned above, in addition to the colorant, the carrier itself can account for 1% – 3 % of your finished product. The nature of this amount of material can determine whether a safety certification is obtained – a process that can take years. It is also important to choose a supplier to help you consider the medical or food grade quality of the colorant mixture and conduct research to ensure that your product still meets these parameters if needed.
4) Pantone matching: The last point to consider is the pure aesthetics of adding colorants to injection molded resin products: What color do you need? Many stores will offer you “blue”, “yellow” and other items. However, if you have a specific look, please note that Pantone matches the colorant with a precision of up to 1%. This is an option in more experienced facilities. We choose Jianlian Mold, we are very professional China Pet Bottle manufacturers, we can provide you with different color products to ensure that you meet your expectations.

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