[Chinese Packaging Network News] Common biscuits in the market are mainly paper packaging and plastic packaging. The common biscuits are mostly simple shapes, and paper materials are generally selected as the inner package. The inner packaging is a forbidden adhesive structure in the folding carton, which has a beautiful structure and can be molded in one sheet. The material is white board with good quality and has certain compressive strength. In the following, we will use the inner package size of the biscuit packaging design as an example to analyze the size calculation formula of the inner package design.
1, internal design dimensions
The maximum outer dimensions of the contents of the biscuits are: Lmax = 137mm, Bmax = 136mm, Hmax = 44mm; for the folding carton, in the length and width direction, the k' value generally takes 3-5mm, and in the height direction, it takes 1 -3mm. The inner dimensions of the Xi-folding carton in the formula, mm; Xmax - the maximum outer dimensions of the contents, mm; k' - the inner dimension correction factor.
Therefore, Li = Lmax + k' = 137 + (3--5) = 141mm;
Bi= Bmax+k'=140mm;
Hi = Hmax + k' = 44 + (1 - 3) = 45mm.
2, manufacturing size
From the result of the calculation in the previous step, Vi=Li*Bi*Hi=141mm*140mm*45mm=869446(mm3) was obtained and measured to obtain M=0.225KG. Therefore, after checking the relevant data sheet, the board thickness is t=0.5mm. When the manufacturing dimensions are calculated from the inner dimensions, the correction factor for the manufacturing dimensions is generally 2 mm long in the width direction and 1 mm in the height direction.
Formula: X=Xi+(n-1)t+k
L=Li+t+k=141mm+0.5mm+2mm=143.5mm
B=Bi+t+k=140mm+0.5mm+2mm=142.5mm
H=Hi+t+k=45mm+0.5mm+1mm=46.5mm
3, external design dimensions
According to the formula, K=1, then:
Lo=L+t+k=143.5mm+0.5mm+1mm=145mm
Bo=B+t+k=142.5mm+0.5mm+1mm=144mm
Ho=H+t+k=46.5mm+0.5mm+1mm=48mm
As described in the above formula, the size of the biscuit packaging design can be calculated according to a formula to ensure the precise size of the packaging design so as to avoid excessive waste and design. For more information, you are welcome to continue to pay attention to China Packaging Network!