The carton box packaging especially the corner of the box can be easily crushed, deformed, broken during transportation if the box size is too large. If the box is just fit for the product, the pressure will be on the product, normally the product can afford more pressure than the box. You just need to find the highest point of the product or the most prominent position to get the length, width and depth of the product. The following are few FAQ in carton box structural design.
Q1: There's a carton box, the size of the product inside is 20cm*20cm*25cm. What's the size of the carton box which could save paper the most? Why? Caliper 1mm.
Answer: 20.1*20.1*25.2, because there're two flaps on the top and bottom of the carton box, so the caliper doubled add to the depth of the box. The box especially the corner of the box can be easily crushed, deformed, broken during transportation if the box size is too large. If the carton box is just fit for the product, the pressure will be on the product, normally the product can afford more pressure than the box. You just need to find the highest point of the product or the most prominent position to get the length, width and depth of the product.
Q2: 1、Which box structure design is more reasonable between the following two boxes? Why?
Answer: the box on the left side has more reasonable structure, the tuck style is more convenient.
Q3: Check the following photo, see if the value of the e and s2 are reasonable, if not, how to correct them?
Answer: the value of these two parameters are not reasonable. The correct value should be e=s2+2, when the tuck inserted into the box, they matched properly.
Q4: check the photo in Q3, how to set the offset? Why?
Answer: usually the offset of cardboard can be 0.5mm, mostly 1mm, the offset of corrugated cardboard should related to the caliper, usually it is half of the caliper.
Q5: Find out the error of the parameters in the following photo and correct them, unit mm caliper 1.5mm
Answer: D2=79
X3=4.5 there will be 3 times caplier after folding
F5=79
D3=78.5
Mostly of them neglected the offset, the value isn't absolutely right, but the offset should be considered.
Q6: The print factory use certain paperboard for the following carton box structural design, the dust flap area has been crushed times, how to deal with this situation while keep the same paperboard?
Answer: Here we can use double folding line or fold on both the front and back side.
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