Overview
Dextrin adhesive powder is a starch-derived, water-soluble bonding material widely used in packaging, paper converting, labeling, bookbinding, envelope sealing and corrugated board applications. It provides clean film formation, fast tack, cost-effectiveness, and excellent machinability, making it ideal for large-scale industrial production.
What Is Dextrin Adhesive Powder
Dextrin adhesive powder is a modified starch adhesive obtained through controlled hydrolysis of starch using heat and catalysts. The resulting dextrin granules dissolve easily in hot water to produce a smooth, stable adhesive with adjustable viscosity and bonding strength.
Properties
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Light to dark yellow free-flowing powder
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Rapid solubility in hot water
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Adjustable viscosity depending on concentration
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Good tack and fast setting
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Odorless and non-toxic
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Suitable for high-speed paper converting machines
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Cost-efficient, biodegradable, natural-based adhesive system
Applications
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Paper converting and laminating
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Corrugated cardboard bonding
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Label and stamp adhesives
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Envelope gums
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Paper tube and core winding
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Bookbinding
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Carton sealing & packaging
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Wallpaper adhesives
Ingredients & Composition
Common raw materials found in dextrin adhesive powder formulations include:
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White or yellow dextrin powders
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Borax (Sodium borate) – viscosity and tack modifier
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Plasticizers (glycerin, sorbitol) – flexibility & film strength
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Preservatives – mold & bacterial resistance
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Fillers (calcium carbonate, talc) – rheology control
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pH regulators
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Optional additives – anti-foams, wetting agents, humectants
Manufacturing Process
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Starch selection – corn, potato, tapioca, wheat.
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Hydrolysis / roasting – starch heated with acidic or catalytic agents to form dextrin.
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Cooling & milling – roasted dextrin crushed into fine powder.
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Blending – plasticizers, fillers, borax and preservatives are added.
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Quality control – viscosity, moisture, solubility tests.
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Packaging – moisture-proof bags for storage stability.
How to Prepare Dextrin Adhesive from Powder
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Heat water to 60–80°C.
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Add dextrin powder slowly with mixing.
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Continue stirring until fully dissolved and homogeneous.
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Adjust viscosity with water or thickening agents.
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Add optional plasticizers or preservatives.
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Filter and store.
Advantages
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Eco-friendly, biodegradable
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Economical compared to synthetic adhesives
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Excellent machinability
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Wide range of viscosities
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Strong bonding for porous substrates
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Non-toxic and food-safe grade options available
Summary
Dextrin adhesive powder is a natural, versatile, and economically efficient adhesive system used across the packaging, paper, labeling, corrugated, and converting industries. Its easy solubility, fast tack, and high compatibility with industrial equipment make it a preferred adhesive for large-volume production. By adjusting the formulation, manufacturers can create dextrin adhesives with customized viscosity, setting time, and bonding performance.
