Gummed paper adhesive

Polysaccharide materials Starch, cellulose, plant gums (arabic gum, tragacanth, karaya, ghatti, guar, locust bean, fruit tree gum) Paper, paint binders, adhesives... 

Products and Uses Used in chewing gum, candles, wax paper, adhesive component, crayons, floor polishes, cold cream, eyebrow pencils, lipliner pencils, lipstick, chewing gum, pharmaceutical bases, and wax depilatories. Also for coatings, toiletries, lubricating material, masticatory (chewing) substance, food... 

Products and Uses A substance used in adhesives (gummed paper, tapes, cartons, bags), food products (gravies, custards, confectionery), filler in baking powders... 

Animal glues are used widely in a variety of ways with paper. For example, they have been the dominant adhesive for rewettable gummed paper tapes, labels, and envelope seals [69]. They are an important coadditive with synthetic wet-strength resins and rosin sizes for coated paper products [70]. They have been a primary binder for the grit that forms sandpaper [71]. 

Uses Wax for use in furniture, leather, auto, and floor polishes, leather and textile finishes, cosmetics (lipsticks), casting, lubricants/greases, adhesives, chewing gum, paper size and coatings Features Hard, lustrous... 

Emulsion Adhesives. The most widely used emulsion-based adhesive is that based upon poly(vinyl acetate)—poly(vinyl alcohol) copolymers formed by free-radical polymerization in an emulsion system. Poly(vinyl alcohol) is typically formed by hydrolysis of the poly(vinyl acetate). The properties of the emulsion are derived from the polymer employed in the polymerization as weU as from the system used to emulsify the polymer in water. The emulsion is stabilized by a combination of a surfactant plus a coUoid protection system. The protective coUoids are similar to those used paint (qv) to stabilize latex. For poly(vinyl acetate), the protective coUoids are isolated from natural gums and ceUulosic resins (carboxymethylceUulose or hydroxyethjdceUulose). The hydroHzed polymer may also be used. The physical properties of the poly(vinyl acetate) polymer can be modified by changing the co-monomer used in the polymerization. Any material which is free-radically active and participates in an emulsion polymerization can be employed. Plasticizers (qv), tackifiers, viscosity modifiers, solvents (added to coalesce the emulsion particles), fillers, humectants, and other materials are often added to the adhesive to meet specifications for the intended appHcation. Because the presence of foam in the bond line could decrease performance of the adhesion joint, agents that control the amount of air entrapped in an adhesive bond must be added. Biocides are also necessary many of the materials that are used to stabilize poly(vinyl acetate) emulsions are natural products. Poly(vinyl acetate) adhesives known as "white glue" or "carpenter s glue" are available under a number of different trade names. AppHcations are found mosdy in the area of adhesion to paper and wood (see Vinyl polymers). 

Rosin, a brittle solid, mp 80 °C, is obtained from the gum of trees and tree stumps as a residue after steam distillation of the turpentine. It is made of 90% resin acids and 10% neutral matter. Resin acids are tricyclic monocarboxylic acids of formula C20H30O2. The common isomer is 1-abietic acid. About 38% of rosin is used as paper size (its sodium salt), in synthetic rubber as an emulsifier in polymerization (13%), in adhesives (12%), coatings (8%), and inks (8%). 

The refined waxes and oils have a wide variety of end uses eg in the manufacture of hand cleaners, hair pomades, milking creams, waxed food cartons, chewing gum, desensitiser in the explosives industry, crayons, candles, printing ink, industrial jellies, water proofing, carbon paper wax, hot melt adhesives, paints, varnishes and many others. 

Large quantities of starch are consumed as a component of adhesives for paper and paperboard, especially in the production of corrugated board. Dextrins, derived from com or potato starch, are used as adhesives for laminated products and as gums for envelope construction and sealing. 

Polyterpene resins (600-1500 mol. wt.) (16%), used for adhesives, pressure-sensitive sizes (dry cleaning, paper, chewing gum)... 

Gum Arabic Pharmaceutical tablet binder Adhesive for miscellaneous paper 15... 

The cooked pastes of ETHYLEX demonstrate excellent viscosity stability over prolonged periods of time and show little change in viscosity due to temperature fluctuations. Films produced from these pastes are clear, continuous and decidedly more flexible than those produced from other starch modifications. These characteristics, and others to be discussed later, strongly recommend the ETHYLEX Gums to widespread application in the paper, textile and adhesive industries. 

FDA approved for a wide range of applications ranging from direct food additives such as chewing gum base to indirect food additives in adhesives, paper and paperboard, and polymers as per 21CFR175, 176, 177, and 178. 

Use Adhesives, thickening agent, sizing paper and textiles, substitute for natural gums, food industry, glass-silvering compositions, printing inks, felt manufacture, substitute for lactose in penicillin manufacture, fuel in pyrotechnic devices. 

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