Packaging paper

In addition to these uses related to crop production, hydrocarbons are used extensively in packaging, particularly in plastic films and to coat boxes with plastic and (to a much lesser extent) wax. Polymeric resins derived from hydrocarbons are also used to make trays and cases for deflvery of packaged foodstuffs (see Eilmand sheeting materials Packaging Paper). 

The AKDs are used in paper sizing appHcations. Paper sizing chemicals provide paper and paperboard with resistance to wetting by Hquids, especially water repeUency in paper cups, milk cartons, photographic paper, coatings, and packaging paper (139) (see Paper Papermaking additives). 

Packaging (paper and plastic) packaging adhesives release coatings barrier coatings Photochemical machining (89) micromechanical parts optical waveguides... 

Another significant end-use for polyamines is in preparation of paper wet-strength resins. These are polyamide, modified formaldehyde, and polyamine resins used to improve the physical strength of tissue, toweling, and packaging paper products. The cationic formaldehyde resins include both urea—formaldehyde and melamine—formaldehyde types (248,249). Cationic functionaHty is imparted by incorporation of DETA, TETA, and/or TEPA in... 

Basic dyestuffs are usually used for dyeing of unbleached pulp in mechanical pulp such as wrapping paper, kraft paper, box board, news, and other inexpensive packaging papers. Their strong and brilliant shades also make them suitable for calendar staining and surface coloring where lightfastness is not critical. 

Packaging paper and plastics film, coated and laminated... 

By control and substitution of chemicals used in the paper mills, manufacturers of packaging papers and board can contribute themselves directly to a small mineral oil reduction in their products. Some additives contain mineral oil as solvent such as flocculation or retention aids based on polyacrylamide (PAA), resin sizing agents or defoamers. A change of such products to mineral oil-free additives removes their own mineral oil input and reduces the contamination of packaging material. In the area of retention aids based on PAA, this conversion has already mostly taken place. 

Packaging Paper, cardboard, plastics, films, adhesives Raw materials screening Physical properties, such as crystallinity - polymers Quality control... 

Polymer-coated heat sealable packaging materials are composed of several layers (64). The material includes a fiber base of packaging paper or packaging board, an outer polymeric heat sealing layer, such as low density poly(ethylene) (LDPE), and an inner polymeric... 

Coated free sheet Newsprint Packaging papers Linerboard Corrugating medium Boxboard... 

E-mail Address editor packagingtoday.com Web Address www.packagingtoday.com Packaging Today provides news on the packaging, paper, oil and gas, plastics and recycling industries. 

One of the tribulations of the New England Document Conservation Center is that very few people can remember our name. This was driven home to us earlier this summer when a client sent us a number of prints for treatment, and addressed her package Paper Conservation Center, North Andover, Massachusetts. We received a call from someone at the town dump who said a package of prints, which appeared to be for us, had been delivered to their paper recycling program. It was fortunate that some employee noticed this was the first time they had ever received trash by registered mail. 

For agricultural markets, NNZ supplies film and bags, trays and containers, transit packaging, net packaging, paper and cardboard packaging and jute sacks. 

Use Barrier coatings for packaging papers, paper-boards, plastic films, and specialty saturants. 

Acid low sized packaging paper 50% (40-60) with cationic fixation 80-90%... 

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