1. Packaging materials

The most widespread application of PET is in beverage bottles, food containers, cosmetic packaging, etc. It can provide extremely high transparency, as well as good moisture-proof performance and durability.

2. Textile fibers

PET is the main raw material for fibers, especially polyester fibers and fabrics. PET has excellent heat resistance, anti-wrinkle properties and other characteristics, which can enable the fibers to maintain a long service life under various environmental conditions.

3. Auto parts

PET is also used in common automotive parts, such as interior and exterior trims, seat materials, car window films, etc. Its weather resistance and high strength can ensure that automotive parts are not prone to deformation, fading or loss of strength.

4. Electronic products

PET is commonly used in the casings of electronic products, such as mobile phone casings and protective films for electronic displays. The electrical insulation, strength and impact resistance of PET make it an ideal choice for electronic products.

5. Medical industry

The transparency, non-toxicity and corrosion resistance of PET make it widely used in medical devices and packaging. For example, medicine bottles, test tubes, medical packaging materials, etc.

6. Other fields

In addition, we can also see the presence of PET in fields such as optical lenses, solar modules, aerospace materials, construction and decoration materials.

In fields such as packaging, fibers, and electronic products, the color diversity of PET has become an important part of product design. Color applications include but are not limited to: transparent colors, metallic gloss, gradient colors, layered colors, and highly saturated colors.

However, due to the transparency of PET, there are relatively high requirements for PET coloring schemes.

The colorants for PET need to have the following characteristics:

Dispersibility: The color masterbatch needs to be highly dispersed to ensure uniform color and avoid the formation of color spots or grainy sensations.

Stability:During the injection molding process, the colorant must have high stability to avoid color changes or fading due to variations in temperature or mechanical shear force.

Transparency: In transparent or semi-transparent PET, it is very important to maintain high transparency without affecting the color.

No grainy feel: The final product needs to have a smooth and fine surface, free from the influence of particles or impurities.

Uniform color dispersion

Liquid colour masterbatches use liquid carriers. The pigments have been pre-dispersed during the preparation stage and can be evenly integrated into PET, ensuring more uniform colors. This characteristic is particularly important in high-transparency PET packaging.

Does not affect transparency

The low addition amount of liquid colour masterbatch and the feature of no resin carrier enable PET to achieve excellent color effects without sacrificing transparency.

The colors are precise and consistent.

Liquid colour masterbatches can precisely mix colors through automatic addition equipment. Even in mass production, it can ensure color consistency between batches.

Less material waste

The color masterbatch feeding port of the liquid color masterbatch addition equipment is located at the lower end of the drying bucket. The liquid colour masterbatch does not pass through the drying bucket, and the plastic inside the drying bucket is not contaminated and can all be recycled.

Preliminary requirement analysis: Based on the specific needs of the customer, product type and color effect, the most suitable liquid colour masterbatch formula will be designed by a professional colorist.

Small-batch trial production: Through small-batch production, color testing is conducted to ensure stable color effects and quality.

Mass production: Once the sample is confirmed to meet the requirements, the liquid colour masterbatch enters the mass production stage.

Inspection and Delivery: Liquid colour masterbatches are delivered on time to ensure the production progress and quality requirements of customers.