Environmental Stability of Paper Products
Abstract
The study covers the investigation of some fifteen paper additives (including oxidized and cationic starches, neoprene and urethane latices, a water soluble polymer, a fluorocarbon resin and aqueous and nonqueous fungicides) for possible use in upgrading kraft type paper. It was desired to improve oil, water, aging and fungus resistance properties of the paper. Good oil resistance was obtained using the fluorocarbon resin even though "alum" (aluminum sulphate) interfered with its deposition on the pulp fibers. The nonaqueous solutions of fungicides provided excellent fungus resistance but also required an extra immersion step after the paper had been formed. The best water resistance was obtained utilizing a water soluble polymer (Kymene 557). In a "composite" hand sheet formulation (made from the base formulation plus additives giving the best individual properties) some properties were Improved, i.e., tensile breaking strength and folding endurance and some were downgraded, i.e., tear and pH.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1967
- Accession Number
- AD0664136
Entities
People
- William F. Garland