Issue:  Cracking or fractures in the bottle body or cap can occur during handling, shipping, or filling. These cracks may appear along the body or neck, weakening the bottle and making it unusable. Possible Causes: Incorrect material selection. Insufficient thickness...

Issue:  Black spots or specs are small, dark discolorations that appear on the surface of the bottle. They are often caused by contaminants in the material or mold, compromising the appearance of the product. Possible Causes: Contamination in the resin or raw...

Issue:  Blistering or bubbles are small air pockets that appear on the surface of the bottle. This issue is typically caused by trapped air during molding, resulting in unsightly imperfections. Possible Causes: Entrapped air or gas during molding. High mold...

Issue:  Discoloration of the bottle occurs when the resin reacts with UV light, heat, or the contents inside, changing the color of the material. Possible Causes: Exposure to UV light or heat. Incompatible resin formulations. Chemical reactions with the product inside...

Issue:  Fish eyes are small, glossy, round imperfections on the surface of the bottle. They are usually caused by contamination during the molding process, such as oils or moisture. Possible Causes: Contaminants (oils, moisture) on the molding surface. Incompatible...

Issue:  Leaks or inconsistent seals can occur when the closure does not form a perfect seal, leading to product leakage during storage or transportation. This can result in contamination or loss of product. Possible Causes: Misalignment of closure during capping....

Issue:  Sink marks are depressions or indentations on the surface of the bottle, caused by uneven cooling or insufficient material thickness in certain areas. Possible Causes: Uneven cooling rates. Insufficient material thickness. Poor mold design. Troubleshooting...

Issue:  Stress cracks appear as fine cracks that can develop in the bottle due to internal stresses. This often occurs in brittle materials or from uneven cooling during molding. Possible Causes: Brittle materials. Uneven cooling or temperature fluctuations. Improper...

Issue:  Warping occurs when the bottle deforms or bends due to uneven cooling or exposure to heat. This typically happens when the bottle is exposed to temperature changes during storage or shipment. Possible Causes: Uneven cooling or heating during molding. Use of...

Conduct Root Cause Analysis: Use tools like fishbone diagrams or 5-why analysis to get to the core cause of the problem. Review Historical Data: Analyze past production runs to identify trends or recurring issues. Collaborate with Suppliers: Work closely with material...