Milk carton
A milk box and box body technology, applied in the field of milk boxes, can solve the problems of trouble, no obvious change in pH, unreasonable pH detection method, etc., and achieve the effect of accurate detection and convenient sales selection.
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Embodiment 1
[0035] Such as figure 1 As shown, a milk box includes a box body 1 and a straw 2 bonded to the side of the box body 1 , and the box body 1 is provided with a suction hole for the insertion of the straw 2 .
[0036] Such as figure 2 As shown, in order to be able to intuitively and accurately judge whether the milk in the box body 1 has deteriorated, the box body 1 is provided with a deterioration indicating mechanism, which includes three discoloration zones 3, and the three discoloration zones 3 are located in a rectangular parallelepiped In the transparent box 5 of shape, transparent box 5 is positioned at the opening that offers on box body 1, and the peripheral side of transparent box 5 is integrally sealed with box body 1, and transparent box 5 is made of aluminum foil towards the side of box body 1 inside. The three discoloration zones 3 are sequentially filled with irreversible temperature-changing inks with temperature ranges of 5-25°C, 5-30°C, and 5-35°C.
[0037] B...
Embodiment 2
[0042] Such as image 3 As shown, a milk box is different from Embodiment 1 in that the transparent box 5 is disc-shaped, the discoloration zone 3 is located in the transparent box 5, and the color comparison card 4 is also ring-shaped and surrounds the transparent box 5. week side. Correspondingly, the color comparison card 4 is provided with six different color bars, which correspond to the color changes of the three irreversible temperature-changing inks, so that the observer can accurately and quickly determine whether the milk has deteriorated and the degree of deterioration.
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