Flexible Packaging Containing Solvent-Free Adhesives

Table of Contents

Introduction
What are Solvent-Free Adhesives?
Types of Solvent-Free Adhesives
     Water-Based Adhesives
     Hot Melt Adhesives
How Solvent-Free Adhesives Benefit Flexible Packaging

Flexible packaging

Flexible packaging

Introduction

Growing environmental regulations drive the growth and development of solvent-free adhesives. As mentioned in Food and Beverage News, these new adhesives are transforming the flexible packaging industry. This article discusses the role of solvent-free adhesives in flexible packaging.

What are Solvent-Free Adhesives?

Adhesives are said to be solvent-free if their formulations contain no more than 5% of solvent. The following are the advantages of solvent-free adhesives:

  • Flexible processing time
  • High initial strength
  • Improved environmental footprint
  • Reduced health risks

Types of Solvent-Free Adhesives

The two major types of solvent-free adhesives are water-based adhesives and hot melt adhesives.

Water-Based Adhesives

Water-based adhesives are the largest group of solvent-free technologies. They:

  • Usually have higher surface energies when compared to solvent-based adhesives
  • Improve adhesive properties for a given application

Hot Melt Adhesives

Hot melt adhesives are the rapidly growing class of solvent-free technologies. They:

  • Have a quick set time
  • Offer versatility and good cost in use

How Solvent-Free Adhesives Benefit Flexible Packaging

The Adhesive and Sealant Council quotes that the solvent-free adhesives have influenced the flexible packaging industry in the following ways:

  • Solvent-free adhesives offer temperature resistance, humidity barrier, and good clarity
  • They are applied to join layers of foils, papers or films in high-performance packaging
  • Packages made with these adhesives are typically lighter and take up less shelf space for display, shipping, and storage

Bostik provides solvent-free adhesive products for the flexible packaging industry. These adhesives are:

  • In compliance with the latest food regulations
  • Environmentally friendly
  • Low cost for production at high speed

Bostik’s solvent-free adhesives are ideal for general purpose applications, like film-to-metalized film and film-to-film for bakery, salty snacks, candy, cheese and meat packaging.

Bostik

This information has been sourced, reviewed and adapted from materials provided by Bostik.

For more information on this source, please visit Bostik.

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