Test Objective:To standardize PET boxes incoming inspection operations,clear inspection items,methods,standards;thereby reducing the quality of the risk,to ensure that products meet customer needs.Scope:pet clear boxes manufacturer.

1.Carton:neat and clean,no damage,deformation,dirt,special product packaging need to have good moisture,drop,anti-pressure,anti-corrosion and other measures.

2.identifies the content:suppliers,material code,material name,date incoming,incoming number,etc.

3.inside:Packing correct,consistent kind,quantity and delivery notes.

4.the surface layer of plastic film seal affixed to prevent external forces caused by the poor appearance,protective film without damage,internal/external no dirt,foreign matter,no seal affixed in place.

5.the surface and internal contamination can not wipe residual liquid stains.

6.because no collision or extrusion,resulting in uneven surface,structural change undesirable phenomena.

7.printing color and brightness to meet the design requirements consistent with the sample.

8.printed patterns and colored text can not be allowed to have significant chromatic phenomenon.

9.surface wrinkles are not allowed inside the box edge round the corners to allow a slight crease.

10.punching and tidy,no offset position,trimming without skew,consistent glitches,rugged,die-cut structure,size and model.

11.scanning to identify,can accurately read the number,and with the printed bar code/two-dimensional code display consistent.

12.closing lid assembly repeated five times,the edge can not appear pale,with glue.

13.may not have the perspective wrinkled corner,blasting angle,damage.

14.Edge sealing glue solid,no degumming,no degumming process in physical test equipment,open plastic.

General properties of PET resin is milky translucent or colorless transparent body,the relative density of 1.38,a light transmittance of 90%.PET barrier material belonged to the middle of the O2 permeability coefficient of 50 ~ 90cm3·mm/(m2·d·MPa),for CO2 permeation coefficient of 180cm3·mm/(m2·d·MPa).PET water absorption of 0.6%,a large water absorption.

High tensile strength of the mechanical properties of PET film,comparable with aluminum foil,is nine times the HDPE film is three times the PC and PA membranes.PET enhanced creep resistance is small,an excellent fatigue resistance (better than reinforced PC and PA),a good wear resistance and abrasion resistance.Mechanical properties of PET are less temperature.

Heat resistance thermal properties of pure PET plastic is not high,but the enhancement significantly improve the mechanical properties at 180 ℃ is better than PF when the laminate is heat-resistant reinforced thermoplastic engineering plastics better varieties.PET heat aging resistance,brittle temperature of -70 ℃,while at -30 ℃ still has certain toughness.PET nonflammable,yellow flame,there dripping.
Although the polarity of the electrical properties of PET polymer excellent in electrical insulating property,but,at high frequencies still well maintained.PET's corona resistance is poor,not for high voltage insulation;electrical insulation affected by temperature and humidity,and greater humidity.

PET environmental properties containing an ester bond,and not water vapor at high temperature conditions,an acid and a base.PET organic solvent such as acetone,benzene,toluene,trichloroethane,carbon tetrachloride and the stability of oil,some of the oxidant such as hydrogen peroxide,sodium hypochlorite and potassium dichromate,also have a higher resistance.PET excellent weatherability,long-term for the outdoors.

Xiamen XieXin Plastic Products Co., Ltd,is a professional pet clear boxes manufacturer.It is founded in 2006,but the founder and the core management team have more than 10years plastic box industry work experience,accumulate rich experience in such field.