Flexible packaging adhesives for wet lamination

The packaging industry has been revolutionized by flexible packaging systems.  It entails the use of a flexible warping material to pack products. This is then sealed to prevent moisture, gas, water, biological and contaminants as well as physical damage to the materials.

Their utilization in the food industry alone is expected to reach $ 99600 million by 2018. This method is widely used in Europe, China, North America, India and Africa.  Polythene has dominated this industry with a utilization of 32%. The future of this industry lies in the use of lamination films.

Types of Lamination Films and Adhesives

Laminates are manufacture by bonding two or more layers of polymeric materials. An adhesive is used to bond the materials so as to achieve the desired properties.  For example an ordinary polythene film is laminated with another film layer to form 2 layers that increase strength.

Adhesive Lamination

The process can be done as dry or wet lamination. The dry process uses three technologies, dry bond, hot melt seal and cold seal.  The adhesives are applied, dried and then used to stick the second laminate by compression. The wet forming process uses liquid adhesives that are directly bonded to the laminate and they stick the two materials when drying.

Extruded Lamination

These have more aesthetic appeal as compared to adhesive laminations and use multiple polymer layers. The first process uses a hot resin which is melted, extruded into a film that is bonded to another film.

The second process entails co-extrusion where two or more materials are melted, extruded to form films that are then bonded. Co-extrusion is a fast, reliable and superior method that forms many layers within one step.

RUICO supplies exclusively water-based wet lamination adhesives for a wide variety of applications.

They contain no solvents or volatile organic compounds (VOCs) and fulfill all requirements for indirect food contact under CFR 21 FDA § 175.105.

Different viscosities are available depending on the requirements imposed on the machinability of the adhesives.

 Young Yao

姚勇勇（Mr.）

Marketing development manager

Zhejiang Ruico Advanced Materials Co., Ltd. (Stock No.873233)

Add: No.188, Liangshan Road, Linghu Town, Nanxun District, Huzhou City, Zhejiang Province, China 313018

Phone: +86 (572) 2903236

Fax: +86 (572) 2905222

WhatsApp: +86 15088303595

Wechat: 18458299199

Website: www.ruicoglobal.com
[email protected]