Low Cost Starch Carry-All Bag Seam Adhesive

Adhesives Formulation

Applicable Type

Waterborne Adhesives , Sustainability / Natural Adhesives

Applicable Base Polymer

Applicable Industrial Sectors

Applicable Base Polymer Properties

Starch adhesives are readily available, low in cost, and easy to apply from water dispersion. They are considered to be the least expensive class of paper packaging adhesive. Formulated starch adhesives can be applied hot or cold. These adhesives are generally provided to the end-user as powder and mixed with water prior to use to form a relatively thick paste.

Typical Formulation Ingredients

Phase

Ingredient

Parts by weight

Aluminum silicate, ASP-400

xxx

Borax (10 Mols)

xxx

Corn starch

xxxx

Water

xxxx

Processing

Resulting Properties

Starch based adhesives are commonly used for bag manufacture. Normally three adhesives are used in this application: seam, cross-pasting, and bottoming. The viscosity and solids content of these adhesives are relatively low. Generally they are made from high soluble white dextrin or acid modified starch. The bottom adhesive is made from a more viscous paste, and it generally has greater tack. Bottom pastes are normally composed of white dextrins or starch.

Source: Adhesives Formulary Handbook, NIIR Board, Asia Pacific Business Press, Inc., 2010, p. 121.

Tips and Tricks

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