Dextrine/Starch-Based Adhesives
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Description
Starch-based adhesives are made from natural polymers derived from roots, tubers and seeds of higher plants such as maize, potatoes, wheat, rice and tapioca. A starch-based adhesive is either cold or warm water-soluble depending on the application specifications. Starch granules are slurried in water. The mixture is heated until the granules burst. The granules absorb water and swell increasing in viscosity forming the paste or adhesive. The starch source depends on performance, machining and economics.
• Paper products
• Lamination applications
• Tube winding
• Labeling and envelopes
• Bookbinding
There are two types of starches borated and unborated.
• Is an ancient adhesives
• Became widely used during the industrial revolution
Dextrin is a type of dry roasted starch. A wide range of gums and pastes can be developed by controlling acidity, moisture content, and roasting temperature, varying levels of solubility and viscosity can be produced:
Dextrine/Starch-based adhesives common applications
Common applications for dextrine/starch-based systems include.
• Corrugated board• Paper products
• Lamination applications
• Tube winding
• Labeling and envelopes
• Bookbinding
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Dextrine/Starch-Based Adhesives
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