1、 he internal and external dimensions of bottle caps with blue, green, red or yellow color are under size.

2、 The cap has big change in size before and after filling drinks with high temperature.

3、 Easy to adhere to mold and hard to remove from mold.

4、 Flavouring bottle cap used frequently is easy to powder and wear.

5、 The barrier property of HDPE cap is too low to keep big smell from flavouring.

6、 Lagging equipment，long time for size setting，low production efficiency.

7、 The ring and hinge are easily broken.

1、 Packaging material needs barrier property to keep smell stored to ensure the shelf life of medicine.

2、 Products need transparency and dimensional stability.

1、 The post deformation of PP bottle cap is big with unstable size and assembly matching is not good.

2、 The internal and external dimensions of PP\HDPE bottle caps with color blue, green, red or yellow are under size.

3、 Easy to adhere to mold and hard to remove from mold

1、 LLDPE film needs further improvement of transparency.

2、 Preservative film needs to achieve cold/hot anti-frog.

3、 Metal protective film needs to improve adhesive property.

4、 Metal protective film needs anti crystal point and carbon deposition prevention.

5、 Film needs slipping and low surface coefficient of friction.

1、 Thermal forming transparent products need to improve transparency.

2、 Thermal forming transparent products need to improve rigidity.

3、 Products need to improve toughening and low temperature resistance.

4、 Products folded need anti-adhesion and opening.

5、 Products need anti-flaming, extrusion and thermal forming.

1、 Long molding cycle, low production efficiency.

2、 Large post deformation, unstable dimension.

3、 Large shrinkage , serious shrinkage mark.

4、 Product rigidity is not enough, too soft.

5、 Product needs to improve surface hardness and scratch resistance.

6、 Product toughness is not enough and needs to enhance impact strength at low temperature.

7、 Product weight is not enough.