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What’s new: Two colors extruded corrugated plastic sheets

To meet the needs of China National Tobacco Corporation, we commissioned our engineers to design a new type of corrugated plastic turnover box to replace the original cardboard turnover box as outer packaging. The four walls of the box are required to be divided into two colors, and the two walls of the opposite box have the same color.

After in-depth research, and trial , and countless tests of our company, the original production line was modified, and a shunt design was carried out in the abrasive part. The plate with completely separated colors and well-defined boundaries was successfully produced. In the binding stage of the box, the original four One binding line is reduced to two binding lines, which greatly saves the processing cost of the box and improves production efficiency.

Coropak has invention patents.

Two Color Extruded Corrugated Plastic Box

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Picture of Pitt Wang

Pitt Wang

Picture of Pitt Wang

Pitt Wang

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+ 86 186 6221 7067

Technical Data Sheet
Physical Qualifications 
Qualifications Method Unit Polypropylene *
special PP weight ISO 1183gr/cm³0.907
water absorbtion ISO 62%0.02
Thermal Specialities 
Speciality Method  Unit Polypropylene*
Air indexASTM D696mm/m°C0.18
Special temparatureDSCJ/g°C1.68
Thermic inflexion temp. ISO 75°C78
Thermic inflexion temp.ISO 75°C52
vicat softening temp. ISO 306°C148
vicat softening temp.ISO 306°C78
Mechanic Qualifications  - 1
qualifications Method  Unit Polypropylene*
drawing resistance ISO 527MPa38
split point ISO 527%800
stretch index ISO 178MPa1250
impact resistance ISO 180kJ/m²80
Shore hardnessISO 868-66
Mechanic Qualifications  - 2
qualifications Method  Unit Polypropylene*
comparasion of maximum 2,1mm/350grN/cm²Min. 3,7
tension 2,0mm/400grN/cm²Min. 1,4
3,0mm/650grN/cm²Min. 5,5
4,5mm/1000grN/cm²Min. 14,4
Optical Characteristics 
Specialities MethodUnitcorrugated sheet 
light transmissivity 2,0mm/400gr%58
2,5mm/450gr%53
3,0mm/500gr%51
4,0mm/1000gr%37
Electrical Characterictics 
qualifications  MethodUnitcorrugated sheet 
surface resistanceASTMD 257ΩCa. 1013
Electric static ( at 1MHz’)ASTMD 150--2,25
Division rate  (at  tg δ 1 MHz )ASTMD 150--‹ 5×10-4
Electric resistance  ( 500 V/sec)ASTMD 149kV/mm70

WhatsApp: +86 186 6221 7067

Email: sales@coropak.com

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