What Is Sterile Compounding?

Refers to a packaging technology in which a packaged liquid food (such as milk) is sterilized for a short time before packaging and then packaged with composite materials under aseptic conditions.

Aseptic composite paper packaging

Aseptic packaging is a composite of paper, aluminum foil and polyethylene plastic. Among them, the content of long-fiber high-quality pulp, plastic and aluminum is 75%, 20% and 5%, respectively. Packaged liquid food is a packaging technology that is sterilized for a short time before packaging, and then filled and sealed under aseptic conditions. Its advantage is that it can preserve the original nutrition of the food to the greatest extent under aseptic conditions. Ingredients and flavors. It is this 6-layer composite structure that enables aseptic packaging to achieve the effects of quality, freshness, nutrition, and deliciousness. Imagine that liquid food that has been subjected to ultra-high temperature instant sterilization is filled into aseptic packaging under aseptic conditions, and the special structure of the packaging effectively blocks the intrusion of light, oxygen, microorganisms and moisture, and naturally can be at room temperature It has been preserved for a long time.

What's more worth mentioning is that Tetra Pak's aseptic packaging is a green packaging that can be completely recycled. It is of great social significance today in advocating environmental protection and circular economy.

Packaging Packaged beverage boxes are divided into refrigerated (roof pack) and normal temperature (sterile pack). The shape of the refrigerated beverage box is usually roof-shaped, which is mainly composed of cardboard and polyethylene. It requires a good cold chain during the distribution process. Because it contains a wet strength agent, it is more difficult to disintegrate during hydraulic pulping. , Need to add specific chemicals.

Packaging This article mainly introduces liquid aseptic paper packaging at room temperature. Room temperature aseptic paper packaging is usually brick-shaped, that is, beverage packaging that is not commonly refrigerated on the market. Because this part of the beverage box is mostly provided by Tetra Pak, it is called "Tetra Pak" (TBA) and collectively called aseptic paper packaging in terms of performance.

Packaging Sterile paper packaging is composed of cardboard, plastic and aluminum film composite, paper accounts for 73%, plastic 20%, aluminum 5%, and other printing inks and coatings account for 2%. Cardboard is made of long and short fibers; in order to increase the thickness and stiffness, a part of the chemical thermal milling mechanical pulp (CTMP) is usually added to the paperboard; in order to make the surface of the paperboard smooth and easy to print, there is a thin coating on the outside of the paperboard.

Packaging aseptic paper packaging has more than ten years of experience abroad, and the rate of recycling and recycling has increased year by year. The European market collected 200,000 tons in 2000. In the first ten months of 2005, about 8,000 tons of aseptic paper packaging pulp was recovered in China. After the aseptic paper packaging is recycled, it can be applied to the production of packaging paper, envelope paper, corrugated paper, fruit bagging paper and other products.

Packaging, usually aseptic paper packaging consists of 6 layers, from the outside to the inside: the first layer is polyethylene, which blocks moisture and bacteria; the second layer is cardboard, which maintains the strength and toughness of the packaging material; the third layer It is polyethylene, which adheres to all layers; the fourth layer is aluminum foil, which blocks oxygen, odor and light; the fifth layer is polyethylene, which adheres to each layer; the sixth layer is polyethylene, which is used to seal beverages and food.