private label premium bottle closure’s first disadvantage
It is a private label premium bottle closure, and private label premium bottle closure are used more.
No matter what kind of private label premium bottle closure are used for packaging bottles, their bottleneck problems are: private label premium bottle closure have a common defect when they are used: when pouring liquid, the flow rate of liquid is very uneven, from full bottle to half bottle and pouring out , the trajectory of the liquid outflow varies from serpentine to streamlined, and the range is constantly changing from far to near.
It is difficult to grasp the thickness of the liquid, the angle of the liquid, and the flow that needs to be poured out.
The fundamental reason is that the liquid outlet and the intake air are the same channel.
When the liquid flows out of the bottle mouth, the pressure inside the bottle decreases, and the air pressure outside is greater than the pressure inside the bottle.
In this case, air must be automatically replenished into the bottle.
The return air channel is the liquid outlet, that is, The backflow air and the outflow liquid are running in the race, causing the serpentine flow of the liquid in the picture above.
When the liquid is about to be poured out, the outflow trajectory becomes streamlined again.
private label premium bottle closure’s second disadvantage
Bottled liquids currently on the market, especially viscous liquid foods such as edible oil and soy sauce, when the pouring is stopped, the residual liquid flows down the outer wall of the bottle mouth.
The disadvantage of this private label premium bottle closure is that it is not sanitary and inconvenient.
After being placed for a period of time, the residual liquid and the dust in the air will bond together, causing repeated pollution of the bottle mouth, outer wall and private label premium bottle closure.
It is even more difficult when the container is full of liquid and poured out. If you are not careful, the liquid will be spilled on the outside, and it needs to be handled with special care.
Although some improvements have been made to the liquid outlet of some bottles, and a tank for collecting residual liquid is added around the liquid outlet, but it is a blind tank, and the collected residual liquid cannot be returned to the bottle and can only be temporarily stored In the blind tank, and the private label premium bottle closure cannot completely cover the blind tank, the residual liquid is always in contact with the external air, and the residual liquid can only be poured out together when the liquid is poured out next time, which will inevitably lead to serious unsanitary problems. Hidden dangers and facts!
At present, there is a liquid container port with the liquid outlet and the air intake separated, also known as a double-neck bottle.
Most laundry detergents adopt this type of design, but this type of double-neck bottle is suitable for non-edible bottles with large bottle openings and loose sealing requirements.
Various liquid container bottles. At the same time, the private label premium bottle closure produced by this design method still need to pay attention to the pouring angle when pouring the liquid, otherwise the liquid will be disobediently sprayed out and go where it should not go.
For bottles with many repeated openings, the sealing of the two openings is relatively poor, and the liquid food cannot meet the quality assurance requirements, and the problem has not been fundamentally solved.
