Aluminium Papers For Food Flexible Packaging
As people have higher and higher requirements for snack food, how to produce flavor food with pure fragrance, longer preservation time and more convenient storage and carrying is a problem considered by every food factory r&d department at present. With the production of high temperature cooking flexible packaging more and more exquisite and perfect, food research and development has also brought to a new field, the most obvious is that the high temperature cooking packaging containing aluminum foil is more and more widely used. However, in view of the current production situation of high temperature cooking packaging, there are many quality problems in packaging containing aluminum foil. How to improve the production level of packaging bags containing aluminum foil through each link control is the issue I want to discuss with you today.
How to choose compound material reasonably is the key step of packaging well. At present, the cooking temperature in the market is above 121℃ (including). The high temperature cooking packaging containing aluminum foil mainly has the following two material structures, namely BOPET/AL/RCPP and BOPET/AL/BOPA/RCPP. The following author will focus on the analysis of these two structures, and discuss with you, hope to do a good job, to help you do this kind of packaging.
BOPET this material mainly polyester (PET) chip as the raw material, after biaxial stretching the output of a good performance of high-grade plastic film, which has high transparency, avirulent insipidity, tensile strength, good stiffness, tear resistance, it is not easy broken, excellent electrical and optical properties, good wet, cold resistance of oxygen resistance (70 ℃), heat (200 ℃), and resistance to chemical corrosion resistance and excellent features of contractility stability. When selecting BOPET, it should be noted that the thermal shrinkage rate is ≤2% in the longitudinal direction and ≤1.5% in the transverse direction under the condition of 150℃ and 30min, and the surface tension should not be less than 45mN/m.
Aluminum foil is the only metal foil in flexible packaging materials, which has a long time of application in the packaging field. Aluminum foil is a metal material, its water resistance, gas resistance, shading, taste is difficult to achieve any other packaging materials, is still not completely replace the packaging materials. Aluminum foil is 99.0%~99.97% pure electrolytic aluminum, after many times of rolling, rich resources, performance and price has A considerable advantage, cooking packaging aluminum foil should be selected 9 micron thick Grade A soft aluminum foil.
BOPA film has high puncture resistance, impact strength, friction strength and bending strength, and has good barrier property. We should pay attention to its characteristic of being easily affected by moisture, absorbing water and deformation when using BOPA. As the material of the middle layer, double corona is required
Packed and labeled according to the regulations and customer's requests. Great care is taken to avoid any damage which might be caused during storage or transportation. In addition, clear labels are tagged on the outside of the packages for easy identification of the product I. D. and quality information.
Our containers are manufactured in accordance with all applicable regulations for food-grade materials, and our company is certified to ISO 9001,SGS ,FDA .We adhere to the goal of good equipment, first-class management, good products, good service, good credibility”, do our best to meet all our customers’ requirements and provide you our super quality products and service.
We have a lot of experience in this area. With advanced equipment, excellent quality management and first-class work team, we can provide customers with high-quality products and the best quality services.