How can aluminum foil be heat sealed?

Why can aluminum foil be heat sealed?
A very critical factor is the heat sealability of the sealing layer.
Aluminum foil sealing film is a composite material with sealing performance, anti-counterfeiting effect, preventing volatilization and pollution of product contents, and odorless precipitation.
The main reason why aluminum foil gaskets can be fused and sealed with glass bottles and plastic cans is that the sealing layer of aluminum foil gaskets must be heat-sealable. The heat sealability of plastics refers to the thermal bonding […]

Factors affect the sealing of aluminum foil seal liner

Factors affect the sealing of aluminum foil seal liner
In our practical l operation, we found there are many problems many occer when sealing the bottles. We now make a list of the common factors that results in fail of sealing.

The indentation between the bottle mouth and the aluminum foil seal liner is incomplete, resulting in leakage after sealing.
The bottle mouth is not flat, resulting in incomplete sealing.
The top surface of the cap is skewed due to the skewed mouth […]

How to apply pressure sensitive seals for jars

How to apply pressure sensitive seals for jars
The pressure-sensitive seal liner is a sealing gasket based on PS foam, which is composed of pressure-sensitive adhesive and PS foam sealing gasket.
The pressure-sensitive gasket is one piece, without aluminum foil, and is sealed by the pressure of the bottle cap to lock the bottle at room temperature. It has the advantages of simple process, low price, convenient use, good sealing performance, non-toxic and odorless characteristics, and is widely used in the sealing packaging of […]

Why use pressure sensitive seal for glass plastic bottle jar

Why use pressure sensitive seal for glass plastic bottle jar
 
In daily life, when we unscrew some bottle caps, we will see a seal full of letters, which is the pressure-sensitive seal.
Pressure-sensitive seal,is composed of pressure-sensitive adhesive and ps foam sealing liner. It is a single-piece type, without aluminum foil, and provides a sealing function by the pressure of the bottle cap lock at room temperature.

It is suitable for glass bottles, metal jars, aluminum tins, plastic bottles for sealing and […]

What are the main components of an plastic injection mold?

What are the main components of an plastic injection mold?
 
Injection mold is a kind of mold that must be made before producing plastic products. Each plastic product design has its own mold. Injection molding refers to the injection of heated and melted plastic materials into the mold cavity at high pressure and high speed by an injection molding machine, and after cooling and solidification, a molded product is obtained.

 
Although the structure of the injection mold varies due to the type of […]

Hot filling or cold filling?

Hot filling or cold filling?
 
I. Introduction of PET material
1, Definition: PET plastic refers to polyethylene terephthalate, English name is Polyethylene terephthalate, commonly known as polyester resin.It is the most important resin in thermoplastic polyester.

2,  Features:
(1). It has good mechanical properties.Its impact strength is 3~5 times that of other films, and has outstanding bending proof performance.
2). Resistance to oil, fat, olefinic acid, dilute alkali, and most solvents.
3). It has excellent resistance to high and low temperatures, can be used […]

How to import bottlce container from China?

How to import plastic bottlce container from China?
 
As early as the 19th century, people had already used natural resins such as asphalt, rosin, amber, and shellac. In 1868, natural cellulose was nitrified, and camphor was used as a plasticizer to make the world’s first plastic variety called celluloid. From then on, the history of human use of plastics begans.

With the development and demand of the industry, more and more industries are using plastic as a raw material for processing […]