Cosmetic packaging appearance printing and material appearance damage defects

1. Appearance printing defects
Screen printing, hot stamping, and silver hot stamping have poor adhesion, and will fade, gold, and bottom after rubbing or wiping.
There is serious color difference in the packaging of the same batch, and the colors of the bottles and outer boxes are inconsistent.
LOGO, text, and pattern printing are blurred, offset, ghosted, and lack of ink.
Bubbles, warped edges, glue overflow, and wrinkles appear when pasting sticker labels
Partial paint peeling, bleeding, particle pitting, scratches and matte surface on the electroplated and spray-coated bottles
The font thickness of the printed content is uneven, and the small characters of the production date and ingredients are blurry and unclear.
2. Material appearance damage defects
The collision of glass and acrylic bottles will cause cracks, chips, whitening and chipping.
The wall thickness of plastic bottles is uneven, and the dents and deformations cannot be restored after extrusion and transportation.
The aluminum casing and metal parts are scratched, oxidized and blackened, and have bumps and dents.
The cartons are not stiff enough and are flattened, creased, and damaged during stacking and transportation.
Indentations, cracks, and surface coating peeling off the hose surface
The corners of the packaging have sharp burrs, which can easily scratch the bottle and consumers’ hands.
3. Causes of the problem
The ink and coating materials are incompatible with the bottle, and adhesion testing has not been done.
The parameters of printing and spraying equipment are unstable, and the baking temperature and pressure are not well controlled.
The hardness and wall thickness of the raw materials are not up to standard, the plastic toughness is poor, and the glass has no explosion-proof buffer.
Production, warehousing, and logistics lack buffering and protection, resulting in heavy stacking, friction, and collisions.
Mold demoulding produces burrs, shrinkage, dents and other original appearance defects
Appearance inspection standards for incoming materials are loose, and defective products flow into the assembly process
4. Adverse effects caused by
Poor product quality reduces consumers’ desire to buy and affects the brand’s high-end positioning
The appearance of the terminal sold is damaged and can only be disposed of at a discount or directly scrapped, resulting in high loss costs.
Blurred printing and missing characters lead to unclear product information, posing compliance regulatory risks.
Sharp burrs and broken glass pose safety risks to consumers.
5. Improvement Countermeasures
Test adhesion, friction resistance, and material compatibility before printing, and match special ink coatings
Stable spraying, screen printing and baking process parameters, regular spot checks of color difference and printing accuracy
Improve packaging material standards, thicken the wall thickness of stress-bearing parts, and add buffer lining to glass
Pearl cotton is used for workshop circulation and packaging, and card slots are separated to avoid products from rubbing against each other.
Formulate graded appearance inspection standards to strictly control scratches, color differences, damage and defective outflows
Optimize the mold to remove product burrs, shrinkage, dents and other native appearance defects