Frozen food packaging




Frozen foods have become more and more accepted by packaging workers, transporters, salespeople and consumers after 1950. The inclusion of frozen food in a waxed folding carton with a stencil wrap is a natural extension of wax in corrugated boxes and bread. However, in order to achieve better protection, it leads to the search for better processed materials.
Perhaps the most striking result is the development of copolymers as a blending agent. The first such material, the ethyl vinyl acetate (EVA) copolymer, was introduced in 1960. Created a new era of hot wax processing.
Although the hot wax containing high additives can be traced back to the 1930s, the Ber Mmer patent combines castor wax as a blending agent to combine ethylcellulose with paraffin. This material has excellent gloss, but it has poor water vapor barrier capability. This material has become increasingly important after improving the water vapor barrier capability. A small amount of low molecular weight polyethylene plus paraffin wax improves the gloss of the coating and eliminates the need for additional additives. However, the water vapor barrier ability is significantly lower than pure paraffin. The inner packaging carton is originally used for frozen dry goods and other items that do not require special moisture protection. Frozen vegetables need to have high water vapor resistance and cannot be adapted to this treatment. The copolymer solves this problem.
With the unique opportunities and challenges posed by the packaging industry, formulators, ingredient manufacturers, producers, container users, and of course designers and machine builders, have worked together on a variety of blends,
This superior processing of the container design and the reform of the machine produces a container that meets the strict requirements of the demander and the market.


  • 08/11/2018
  • Recently
Click here to view Previous or Next

Related News

Cost-effective industrial laminate

Cost-effective industrial laminate

  • 13/02/2019 09:10:01

The cheapest industrial laminates (Class X) are used in large quantities where the dielectric properties are less important. It is made from unbleached kraft paper and about 30% phenolic resin. It has …

Read more

Casting PA film and production technology

Casting PA film and production technology

  • 21/12/2017 09:33:12

Casting PA film and production technology 1. Casting PA film and its raw materials used: PA film has the advantages of high strength, good toughness, good transparency, good heat resistance and cold…

Read more

Cast film mechanical winding device

Cast film mechanical winding device

  • 19/12/2017 09:21:48

Cast film mechanical winding device Corona treatment device: cast film after corona treatment, can improve the surface tension of the film to improve the printing of the film and together with other…

Read more

Downstream production line auxiliaries

Downstream production line auxiliaries

  • 18/12/2017 09:42:18

Downstream production line auxiliaries Thickness measurement device: In the high-speed continuous production process, cast film thickness measurement must be non-contact automatic tracking. Most o…

Read more

Hot News

ABS sheet extrusion molding process control points

ABS sheet extrusion molding process control points

ABS sheet extrusion molding process control points(1) Feeding. The material should be fed in time to ensure that the hopper is not empty, in order to prevent the air from directly entering the drying cycle system, affecting the dry return air speed. Diffe

Preparation process of ABS sheet

Preparation process of ABS sheet

Preparation process of ABS sheet(1) The raw material is dried. ABS pellets are extremely hygroscopic and must be used before use.Dry. Drying can use hot air circulation oven or hot air hopper type reclaimed materialDryer. The drying process undergoes thre

Add waste materials to ABS sheet

Add waste materials to ABS sheet

Add waste materials to ABS sheet1. Material selection and performanceABS is an amorphous polymer. Under the action of heat and external force, it enters the viscous flow state from the glass state at room temperature through a high elastic state to form a

Plate (sheet) material forming process

Plate (sheet) material forming process

Plate (sheet) material forming processThe plastics of the production board (sheet) are mainly soft polyvinyl chloride, hard polyvinyl chloride, polyethylene.Alkene, polyamide, polymethyl, polycarbonate, cellulose acetate, etc., the first four varieties ar

Characteristics and uses of PTFE - Suspension PTFE

Characteristics and uses of PTFE - Suspension PTFE

Characteristics and uses of PTFEVariety: Suspension PTFEfeature:1. White waxy fine particle material;2. Poor strength;3. Self-lubricating, non-adhesive, stress cracking is good, dynamic and static coefficient is the lowest among plastics;4. Excellent resi

Tags