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FDA regulations you need to know before contacting a cosmetics tube manufacturer
Troubleshooting of beverage bottle processing
by：Lisson
2021-04-07
In the processing of beverage bottles, due to insufficient filling of the cavity, the appearance of plastic parts is incomplete and incomplete.
During the molding process, the remaining material overflows into the gap between the mold clamping surface and remains on the plastic part.
Surface turbidity refers to cracks with voids on the surface of plastic parts and the resulting damage. The phenomenon of external or internal cracks in plastic parts caused by long-term or repeated application of stress lower than the mechanical properties of plastics is called stress cracking; plastic parts suddenly and completely rupture when subjected to a certain time and constant load at a certain temperature The phenomenon is called stress cracking; the cracks and ruptures of certain thermoplastic parts that are excessively exposed to higher temperatures are called thermal stress cracking.
The defect of mica flake-like dark spots on the surface of plastic parts due to poor dispersion or mixing of pigments and other reasons.
The appearance defect of the surface of the plastic part is uneven like orange peel.
Cell streak refers to the cell layer in the foam plastic that is very different from its inherent cell structure.
Fracturing refers to the obvious cracks in the outer layer or layers of the reinforced material of the laminated plastic that can be seen through the resin layer covered on the surface.
The surface of the laminated beverage bottle is cracked and separated obviously.
The appearance defect of creases or wrinkles in one or more layers on the surface of the beverage bottle.
The relatively obvious micro cracks on the surface of plastic parts are called cracks, and the frost-like micro cracks similar to the cracks are called whitening. Both cracks and whitening are micro cracks without cracks. When plastic parts are exposed to a certain chemical environment or under stress conditions, environmental stress cracks will occur.
A linear mark on the surface of a plastic part. It is caused by the diverging and confluence of several streams in the mold during injection or extrusion. The melt is not completely fused at the interface and cannot be fused together, resulting in fusion marks. Affect the appearance quality and mechanical properties of plastic parts.
Due to the improper flow of the molten material in the mold cavity, the surface of the plastic part has the disadvantage of annual ring-shaped, spiral-shaped or cloud-shaped waves.
The needle-like silver-white frost-like details on the surface of the plastic part along the material flow direction.
The defects of linear stripes on the surface or inside of plastic parts.
During the molding process, the remaining material overflows into the gap between the mold clamping surface and remains on the plastic part.
Surface turbidity refers to cracks with voids on the surface of plastic parts and the resulting damage. The phenomenon of external or internal cracks in plastic parts caused by long-term or repeated application of stress lower than the mechanical properties of plastics is called stress cracking; plastic parts suddenly and completely rupture when subjected to a certain time and constant load at a certain temperature The phenomenon is called stress cracking; the cracks and ruptures of certain thermoplastic parts that are excessively exposed to higher temperatures are called thermal stress cracking.
The defect of mica flake-like dark spots on the surface of plastic parts due to poor dispersion or mixing of pigments and other reasons.
The appearance defect of the surface of the plastic part is uneven like orange peel.
Cell streak refers to the cell layer in the foam plastic that is very different from its inherent cell structure.
Fracturing refers to the obvious cracks in the outer layer or layers of the reinforced material of the laminated plastic that can be seen through the resin layer covered on the surface.
The surface of the laminated beverage bottle is cracked and separated obviously.
The appearance defect of creases or wrinkles in one or more layers on the surface of the beverage bottle.
The relatively obvious micro cracks on the surface of plastic parts are called cracks, and the frost-like micro cracks similar to the cracks are called whitening. Both cracks and whitening are micro cracks without cracks. When plastic parts are exposed to a certain chemical environment or under stress conditions, environmental stress cracks will occur.
A linear mark on the surface of a plastic part. It is caused by the diverging and confluence of several streams in the mold during injection or extrusion. The melt is not completely fused at the interface and cannot be fused together, resulting in fusion marks. Affect the appearance quality and mechanical properties of plastic parts.
Due to the improper flow of the molten material in the mold cavity, the surface of the plastic part has the disadvantage of annual ring-shaped, spiral-shaped or cloud-shaped waves.
The needle-like silver-white frost-like details on the surface of the plastic part along the material flow direction.
The defects of linear stripes on the surface or inside of plastic parts.
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