The rubbing or wearing away of a sheet of packaging material through contact with some other material. (also see scuffing, chafing).
Pertains to the amount of liquid taken up by paper, or the rate of uptake or time required for a paper to take up a given amount of liquid. Rate or time of absorbency is more commonly used.
A chemical that yields hydrogen ions in water. It has a corrosive action on many materials. The concentration of hydrogen ions is stated in terms of pH value. Acids are less than pH 7.0.
Paper which has been treated to resist the actions of acids or acid fumes.
The state of sticking together or bonding two or more materials.
ADHESIVE, HOT MELT
An adhesive that is solid at room temperature, liquefied by heat, applied in molten state and forms a bond by cooling and solidifying.
An adhesive used to unitize loads of bags or cases on a pallet providing low peel strength with high shear strength to prevent sliding.
Bonding agents used in the manufacture of shipping sacks. Most common adhesives are the waterproof-types made from starch or dextrines. Others are polyvinyl acetate resin emulsions, latex and hot melt.
United States Agency for International Development
A chemical that yields hydroxyl ions in water. It has a corrosive action on many materials. The concentration of hydroxyl ions is stated in terms of pH value. Alkalis are higher than pH 7.0.
A paper used to wrap materials that have an alkaline reaction, such as soaps or alkaline adhesives. Paper which does not show appreciable discoloration when wet with one percent sodium hydroxide (caustic soda) is considered alkali-resistant.
ALL CREPED MULTIWALL SACK
A sack in which all walls or paper plies are made from creped paper.
ALUMINUM FOIL COATINGS
Aluminum foil coated with polyethylene or other materials.
ALUMINUM FOIL LAMINATIONS
A combination of thin aluminum foil with a paper backing used as a barrier. A typical foil lamination is kraft backing with aluminum foil laminated to the kraft paper by means of an adhesive or extruded polyethylene.
ANGLE OF SLIDE
The height at which a weighted sample placed on another sample of the same material will begin to move or slide down an incline as expressed in degrees of an angle.
A sheet of paper chemically or mechanically altered to increase the coefficient of friction (COF).
The weight per unit of volume of the sheet of paper calculated by dividing the basis weight (500 sheets 24″ x 36″) by the caliper (in mils) and multiplying that figure by the factor 0.0000643
An alternative name for a self-opening sack (SOS).