{"id":378,"date":"2026-09-07T12:39:17","date_gmt":"2026-09-07T04:39:17","guid":{"rendered":"http:\/\/www.allfirepump.com\/blog\/?p=378"},"modified":"2026-09-07T12:39:17","modified_gmt":"2026-09-07T04:39:17","slug":"how-to-prevent-leakage-from-cosmetic-sachet-packages-4f49-5d9a20","status":"publish","type":"post","link":"http:\/\/www.allfirepump.com\/blog\/2026\/09\/07\/how-to-prevent-leakage-from-cosmetic-sachet-packages-4f49-5d9a20\/","title":{"rendered":"How to prevent leakage from cosmetic sachet packages?"},"content":{"rendered":"

Hey there! I’m a supplier of cosmetic sachet packages. Package leakage is a head – scratcher for both us suppliers and cosmetic brands. But don’t worry, I’ve got some real – world tips on how to prevent those pesky leaks. Cosmetic Sachet Package<\/a><\/p>\n

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1. Choose the Right Materials<\/h3>\n

First up, the materials. You can’t skimp on this part. We’ve all got a budget, but going for super – cheap materials is like building a house on quicksand. For cosmetic sachets, a lot of brands go for laminated films. These films are a combo of different layers, each with its own job.<\/p>\n

One layer might be there to keep oxygen out, so the product inside doesn’t go bad. Another could be for strength, so the sachet doesn’t easily rip. Polyethylene is a popular choice for one of these layers. It’s tough and can resist moisture. But you can’t just blindly pick a material. You’ve got to think about what’s inside the sachet.<\/p>\n

If it’s an oil – based cosmetic, you need a material that won’t let the oil seep through or break down the package. Silicone – coated films can be a game – changer here. They form a tight barrier against oils. And if the product is a bit acidic, like a facial toner with a low pH, you need something acid – resistant. Some specialized polyesters fit the bill perfectly.<\/p>\n

2. Quality Control during Production<\/h3>\n

Once you’ve picked the right materials, production is the next battleground. I’ve seen it all in the factory. One small mistake during the manufacturing process can turn a good sachet into a leaky mess.<\/p>\n

During the printing phase, you’ve got to be careful. The ink can sometimes interfere with the adhesion of the layers in a laminated film. We’ve had cases where the ink printed too thick, and it weakened the bond between the layers. So, it’s important to test the ink compatibility with the film beforehand.<\/p>\n

Sealing is another biggie. The seals are like the walls of a fortress. If they’re weak, the enemy (in this case, leakage) can get in. There are different sealing methods, like heat sealing and ultrasonic sealing. Heat sealing is more common. But you’ve got to get the temperature and pressure just right.<\/p>\n

If the temperature is too low, the seal won’t be strong enough. The sachet might start leaking as soon as it’s handled. On the other hand, if the temperature is too high, it can damage the film. It might make it brittle, and then it could crack easily, leading to leaks. We use a lot of quality control checks during the sealing process. We test a sample of sachets by applying a bit of pressure to see if the seal holds.<\/p>\n

3. Design and Shape Considerations<\/h3>\n

The design and shape of the sachet matter more than you might think. A poorly designed sachet can create stress points that lead to leakage. For example, sharp corners can be a problem. When you stack or transport sachets, the sharp corners can get bumped or pressed against other things.<\/p>\n

This can cause the film to tear at those points. Rounded corners are a much better option. They distribute the stress more evenly across the sachet. Also, the size of the sachet matters. If it’s too big for the amount of product inside, it can move around a lot. This movement can put extra stress on the seals.<\/p>\n

We’ve also found that the shape of the opening can affect leakage. A wide opening might be convenient for the user, but it can be harder to seal properly. A narrower, more controlled opening can be easier to seal tightly and reduce the risk of leakage.<\/p>\n

4. Packaging and Storage<\/h3>\n

How you package and store the sachets after production is crucial. Once the sachets are made, they need to be handled gently. Rough handling can cause micro – cracks in the film or damage the seals.<\/p>\n

When it comes to packaging the sachets together, we use protective materials. For example, we might put them in a cardboard box with some foam padding. This helps to cushion the sachets and prevent them from getting damaged during transportation.<\/p>\n

Storage conditions also play a big role. If it’s too hot, the film can become more flexible and the seals might weaken. On the other hand, if it’s too cold, the film can become brittle. We recommend storing the sachets in a cool, dry place. The ideal temperature range is between 20 – 25 degrees Celsius and a relative humidity of around 40 – 60%.<\/p>\n

5. Testing and Validation<\/h3>\n

Finally, you can’t skip testing and validation. Before sending a batch of sachets to a customer, we do a series of tests. One of the most important tests is the drop test. We drop the sachets from a certain height onto a hard surface.<\/p>\n

If any of them leak, we know there’s a problem. We also do a pressure test. We put the sachets in a chamber and increase the pressure slowly. If the sachet can’t withstand the pressure and leaks, we adjust our production process.<\/p>\n

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We also work with our customers to get feedback on the sachets. They can tell us if they notice any leakage issues during handling or use. This feedback loop helps us to continuously improve our products.<\/p>\n

Bath Bomb<\/a> So, there you have it. These are some of the key ways to prevent leakage from cosmetic sachet packages. If you’re a cosmetic brand looking for reliable sachet packages, we’re here to help. We’ve got the experience and the know – how to make sure your products are well – protected. Get in touch and let’s have a chat about your specific needs.<\/p>\n

References<\/h3>\n