In the white goods and electrical household appliances sector, which is one of the largest production powers in Turkey and Europe, the exterior appearance and long-lasting use of products form the basis of brand prestige. As Colorex, we develop masterbatch and specific additive solutions at the highest quality standards for the plastic components of refrigerators, washing machines, dishwashers, air conditioners, and small household appliances.
In white goods production, it is extremely critical to ensure perfect color integrity (color match) when parts coming from different machines and molds meet on the assembly line. We guarantee this flawless color harmony with our high-precision measurement laboratories and zero-error tolerance between lots. Furthermore, we create a superior protection wall against heat, light, and cleaning chemicals that household appliances are exposed to in daily use.
Thanks to the special UV stabilizers and antioxidant additives we have developed, we eliminate the yellowing problem that occurs on plastic surfaces over time; we delay dusting with our antistatic additives and ensure that products maintain their first-day brightness for years.
Recommended Dosage
In standard body and internal components: 1.0% - 2.0%
In small appliances requiring high gloss and aesthetic surfaces: 1.5% - 3.0%
In special applications for anti-yellowing (UV) and dust-repellency (Antistatic): 2.0% - 4.0%
Frequently Asked Questions and Solutions
A technical guide of 50 questions compiled from the field experience of the Colorex engineering team.
Why does the color yellow on white goods parts (refrigerator interior)?
Thermo-oxidative degradation and heat; long-lasting whiteness is maintained with anti-oxidant additive, heat-stable masterbatch.
How is heat resistance achieved in plastics around the washing machine drum?
With masterbatch containing high heat-resistant pigment and heat stabilizer; color shift is prevented at operating temperatures of 90°C+.
Are food-contact internal components in white goods safe?
EU 10/2011 and FDA compliant, heavy-metal-free masterbatch must be used; migration risk is eliminated in food-contact parts inside the refrigerator.
How is surface gloss maintained on a white goods panel (ABS/HIPS)?
With well-dispersed, heat-stable masterbatch; a homogeneous glossy surface is achieved by preventing flow marks and matting.
How is an antimicrobial white goods surface produced?
With silver-ion-based antimicrobial masterbatch; ISO 22196 compliant, providing lasting hygiene on refrigerator and kitchen surfaces.
How is the whiteness index increased in white goods?
With high-TiO2-content white masterbatch and optical brightener; a bright, clean white perception is achieved.
Color tone varies from mold to mold in injection parts?
With heat-stable, high-dispersion masterbatch and a stable process; consistency is ensured by reducing the ΔE tolerance.
How is the odor problem (rPCR) eliminated in white goods plastics?
With odor-removing masterbatch; odorless internal components are produced by neutralizing VOCs coming from recycling.
How is a high-gloss black panel (piano black) achieved?
With high-structure, well-dispersed carbon black masterbatch; deep blackness (jetness) and a smooth glossy surface are achieved.
Why do UV-exposed external white goods parts fade?
It is a lack of UV stabilizer; with HALS additive masterbatch, color fading is delayed on outdoor parts.
How are static-dust-attracting surfaces prevented?
With antistatic masterbatch; dust attraction and static problems are eliminated by lowering surface resistivity.
What should the white goods masterbatch dosage be?
Generally 2-5% for white, 1-3% for colored; adjusted according to the TDS based on opacity and tone depth.
What causes brittle part problems?
Excessive filler/pigment or thermal degradation; impact resistance is maintained with well-dispersed masterbatch that preserves mechanical properties.
How is color matching (brand color) guaranteed in white goods?
With spectrophotometer control and tight ΔE tolerance; the brand color is produced consistently by measuring each lot.
What is the migration risk in refrigerator gaskets/colored parts?
It is prevented with low-migration pigment; color bleeding to adjacent parts and food is blocked.
How is the use of recycled plastic increased in white goods?
With PCR-compatible masterbatch, toner and odor remover; the usage rate is increased by eliminating the color and odor disadvantages of rPCR.
Which pigment for high-temperature parts around the oven/stove?
