A new flexible packaging resealable zipper technology can withstand high temperatures during cooking. Resealable, steamable soft packs have a wide range of applications including wet pet food, tuna, soups, condiments and other foods.
As soft pouches are prevalent throughout the world, the requirements for service are numerous. ZIP-PAK has added resealable features that meet the needs of this group of people. Consumers can now use the original packaging to store and store unused products, and sometimes cans can't. This resealable feature has become a new brand due to its competitive advantage.
Filled and closed packages are subjected to high temperatures for a period of time during the cooking process. The zipper has been challenged and tests have shown that the zipper does not age, melt, and withstand high temperatures during cooking. Zippers are made from a mixture of resins. Initial tests showed that the zipper was able to withstand 121 degrees Fahrenheit and its performance was not affected within 30 minutes. Repeatedly opening and closing, strength requirements are regulated. When zipping, the zipper must remain tightly attached to the bag film. The new zipper bags can be made in different sizes and shapes and can be made on most plastic bag forming machines.
For conventional retortable containers, such as aluminum cans, retortable soft packs show many advantages. In the bag, the food inside the bag is flat and the heat distribution is more even. The same sterilization effect requires only a shorter time. The shortening of the heat release time can better maintain the original umami taste of the food. For manufacturers, it can also reduce energy costs, shorten the cycle time, and increase productivity.
Due to the increased resealability, bags and bags will continue to be well received by consumers who like to cook. ZIP-PAK also announced the development of this zipper technology. This barrier packaging technology does not require advanced or refurbished equipment. New technologies can make resealing properties quickly and easily add to high barrier packaging materials. The combination of zip closure and barrier packaging provides extremely comfortable convenience, strict moisture and oxygen barrier requirements, and extended shelf life.