Additive Masterbatch Anti Fog

Each type of additive masterbatch has some special properties to improve the end plastic product.

ANTI FOG ADDITIVE

Enhancing Clarity

Anti-fog additives are non-ionic surfactants that lower the surface tension between two liquids or a solid and a liquid. These additives can be added to the plastic sheet during extrusion in the form of master batches. They allow water to spread into a continuous & uniform transparent layer of water on the surface of films. This results in improved light transmission and transparency which has benefits in both agricultural and food packaging applications.

How does it work ?

Under cold atmospheric conditions, fog seen on the inside of clear plastic packaging is the result of the condensation of water vapor on the surface of the material. Fog on the surface of the packaging can reduce shelf appeal and even impact the quality of the product.

To help combat this, anti-fog additives and treatments can be used during processing of the plastic sheet. The appearance of fog seen on the surface of clear plastic packaging is the result of the condensation of water vapor on the surface of the material.

Value Addition

In packaging, this phenomenon occurs when the temperature of the material’s surface falls below the dew-point temperature of the enclosed air and water vapor within the headspace of the packaging. The air near the material cools to a temperature at which it cannot retain the water vapor, and as a result the excess water condenses on to the material’s surface.

In Food packaging applications, if the food stored in the plastic bag have a high moisture content, then the item stored in a cool environment leads to temperature drop initiating condensation on the surface of Plastic film leading to fog. Similarly the food stored in a molded / thermoformed container is hot and gives off steam, this creates condensation when the hot air comes in contact with the cooler inside surface of the packed container lid. This cannot only ruin the shelf life of the food product by preventing the consumer from seeing the contents, but it could also impact the quality of the food.

There are two methods used to minimize the formation of fog on sheets , molded items & thermoformed parts, they are a) Internal additives & b) external topical coatings. These treatments both work to minimize surface tension, resulting in a non-scattering film of water rather than single tiny droplets.

Internal anti-fog

Internal anti-fog additives are non-ionic surfactants, or compounds that lower the surface tension between two liquids or a solid and a liquid. These additives can be added to the plastic sheet at the extrusion level in the form of concentrates or masterbatches.

A degree of incompatibility exists between the polymer and the additive, and as a result, the additive migrates to the surface. These additives work to decrease the surface tension of the water droplets, thus reducing the surface tension between the water and the surface of the plastic packaging. This allows the water to spread out creating a more uniform layer of water, thus improving the transparency of the water droplets and eliminating the fogging effect.

External anti-fog

External anti-fog coatings are applied to the surface of the plastic sheet or film. These external coatings work similarly to the internal additives in that they are designed to help decrease the surface tension between the water droplets and the material’s surface,

resulting in improved transparency. These coatings come in the form of a liquid that is coated to the surface of the sheet or film either by a dip coating and roller process or through a spray application.

Product	Description	Download TDS
Plast Antifog	Optimum balance of Sealability, Printability and Lamination characteristics, Suitable for both Hot fog and Cold Fog applications	Download TDS

Key features of Bajaj Anti Fog Additive

Technical Advantages

Oleochemical derivative with optimal balance of efficacy and service life holds good for food packaging applications for enabling clarity , transparency & better shelf life restoration.

Agricultural Benefits

Using anti-fogging additives in agricultural films offer benefits such as-Improved light transmission resulting in higher plant growth rates, higher crop yield per plant and earlier crop maturity-Reduced burning of plants , crop spoilage and limited water dripping

Oleochemical Unique Imputs

Optimum balance of Sealability, Printability & Lamination characteristics.

Application Segments

Suitable for both Hot & Cold Fog applications finds a good solution as window shield in Automotive applications.

Plast Antifog
for
Film Application

We are well known as a reliable partner for our clients who are converters for leading brands in Flexible Packaging as our White masterbatches are well suited for Blown film extrusion of Mono layer as well as Multilayer films

Plast Antifog
for
PE FIlm

PE film is also called stretch film, stretch film, and stretch film. PE film is mainly widely used in centralized winding packaging of various goods. It can reduce the damage and collapse of the goods during the transportation process.

Plast Antifog
for
Multi Layer Film FIlm

Multi Layer film has the combination of skin & core layers with diverse film properties , significant capabilities and cost advantages when compared to conventional 2 or 3-layer films. It has wide applications in collation shrink films , laminates , edible oils, ghee, etc.

Plast Antifog
for
Mulch Film

Plastic mulch films are used for weed spread control and water retention in crop production and landscaping. Plastic mulch film also acts as a barrier to keep fumigants efficiently in the soil instead of being released into the atmosphere.