8 standards for inspection of customized bottle lid
El tapa de botella personalizada has been paid more and more attention by manufacturers.
As part of the packaging, the anti-counterfeiting function and production form of wine bottle caps are also developing towards diversification.
In the face of a mixed market, how to judge whether the customized bottle lid is qualified? The following is a detailed introduction to the lids made by Jinding in Lianyungang City.
1. The surface of the cap body of the customized bottle lid: the shape is full, the structure is complete and there is no shortage of materials, no obvious damage, burrs and deformation; the cap experience meets the standard acceptance limit, and the color is uniform.
2. The sealing ring of the customized bottle lid is not damaged, deformed, or pulled.
3. The side seal and top seal of the customized bottle lid are free of bubbles and damage.
4. The thread is allowed to be slightly strained at the non-starting point, not less than the lower limit of the inner diameter of the paper.
5. There is no breakpoint at the tangent point of the bridge, adhesion or not full.
6. There is no perforation or cracking in the gate of the customized bottle lid, and there is no obvious gate residue or depression.
7, no oil, dirt, rust, impurities.
8.The pattern is clear, there are no defects such as missing printing, missing printing, etc., which meets the allowable limit of poor color registration, cross-inking, and pattern color, and the allowable center deviation of partial printing does not exceed 0.3 mm.
How to judge whether the customized bottle lid is qualified?
customized bottle lid generally use polyolefin as the main raw material, which is processed by injection molding, hot pressing and other processes.
In order to ensure that the sealing of the product is up to the standard, it is necessary to carry out certain testing on the bottle cap. How to test the tightness of customized bottle lid?
Standard test methods
The national standard GB/T 17876-1999 specifically stipulates the detection problems of this customized bottle lid, such as the cap opening torque, thermal stability, drop resistance, leakage and sealing performance.
Among them, the evaluation of sealing performance and bottle cap opening and tightening torque is an effective way to solve the sealing performance of customized bottle lid.
According to the different uses of bottle caps, there are different regulations for the measurement methods of non-air caps and air caps.
If there is no air cap, cut off the anti-theft ring (strip) from the bottle cap, use it to seal with a rated torque of not less than 1.2NM, test it with a seal tester, pressurize it to 200kPa, keep the pressure underwater for 1 minute, and observe whether there is leakage Air or trip.
The air cap is pressurized to 690kPa, keep the pressure underwater for 1 minute, observe whether there is air leakage, then increase the pressure to 1207kPa, keep the pressure for 1 minute, and observe whether the cap is tripped.
Detection application
Mainly use Labthink’s “LSSD-01 Leakage and Sealing Strength Tester” as an example to introduce.
The instrument can be professionally used for quantitative determination of leakage and sealing performance of various standard customized bottle lid (with and without gas caps) with a thread diameter of 28mm and 38mm.
Tripping strength and indicators such as sealing, compression resistance and burst resistance of the entire bottle body are evaluated and analyzed.
Equipped with a special “customized bottle lid sealing performance test device”, the anti-theft bottle cap is linked and packaged with a connecting unit, placed in a transparent observation tank, and the test is started after setting test conditions such as test pressure or leakage, and the instrument automatically performs the test.
Test data such as pressure and leakage can be displayed directly on the LCD screen. At the same time, it can also be judged by transparent observation of the air bubbles in the tank.
Summary
The sealing performance of the customized bottle lid is the main factor affecting the packaging leakage and product deterioration.
By reasonably controlling the sealing performance, it can ensure its good opening performance and avoid leakage.
