Biaxially oriented polypropylene BOPP

Biaxially oriented polypropylene (BOPP) films have higher stiffness than cast films and consequently can be used in much thinner gauges. Homopolvmers are used almost exclusively to provide maximum stiffness and water-vapor barrier. Oriented films are produced by the tenter frame and bubble processes. 

Bi-Ax International is a Canadian company dedicated to oriented polylactide film (OPLA) and biaxially oriented polypropylene (BOPP) film. Bi-Ax International is headquartered in Wingham, Ontario, Canada, and operates a separate manufacturing facility in Tiverton, Ontario, Canada. 

Innovia Films is the world s leading supplier of speciality biaxially oriented polypropylene (BOPP) and cellulose films for speciality packaging, labelling and graphic arts and industrial products. Innovia has annual sales of over 350m and employs some 1,400 people worldwide. Total annual film capacity is more than 120,000 tonnes. The company has production sites in Belgium, UK, USA and Australia and sales offices throughout Europe, the Americas and Asia. 

General Description Polypropylene is produced commercially in different forms, depending upon the desired properties. Polypropylene films can be stretched, or oriented, to modify the properties. Biaxially oriented polypropylene (BOPP), and oriented polypropylene (OPP) films are polypropylene films that have been oriented biaxially and uniaxially, re-spectively.f ]... 

Biaxially oriented polypropylene [BOPP] surface modification by nitrogen atmospheric pressure glow discharge [APDD] and by air corona. Plasmas Polymers, Vol. 7, pp. 71-88, ISSN 1084-0184. 

Journal of Applied Polymer Science 60, No.l, 4th April 1996, p.29-35 STUDY OF DIFFUSION AND SORPTION OF BIS-(2-CHLOROETHYL)SULPHIDE (SM) AND BIS-(2-CHLOROETHYL)ETHER (OM) THROUGH POLYPROPYLENE (PP) AND BIAXIAL-ORIENTED POLYPROPYLENE (BOPP) FILMS BY THE FTIR-ATR SPECTROSCOPIC METHOD Semwal R P Baneijee S Chauhan L R Bhattacharya A Rao N B S N... 

The flavor permeation rates were measured on both uncoated and hybrid polymer coated biaxially oriented polypropylene (BOPP) films. Here, a thermally curable epoxysilane based coating sol was used. Figure 15 shows that the permeation rates of the flavor... 

Permanent internal antistatic agent for use in high and low density polyethylene, polypropylene and biaxially oriented polypropylene (BOPP) film. 

Sra et al. reported that the dried carrot shoes pretreated with 6% KMS and packed in AFL pouches (polyethylene, aluminum foil and polyester) retained the physicochemical quality at an acceptable level up to 6 months imder ambient conditions, the maintenance of quality was better in AFL pouches (32.5 pm) than that in HDPE pouches (56.0 pm) (2011). A study on storage of aloevera gel powder in three different packaging materials viz., laminated aluminum foil (AF), biaxially oriented polypropylene (BOPP) and PP suggest that packaging in AF is better than that in BOPP and PP in terms of color change (Ramachandra and Rao, 2011). 

Biaxially oriented polypropylene (BOPP) tapes with hot-melt adhesives based on styre-nic block copolymers have now attained the biggest share of the market for cartonsealing tapes. They require a backsize, and on unwinding they evolve much noise. 

Kalapat N, Amomsakchai T,. Srikhirin T. Surface modification of biaxially oriented polypropylene (BOPP) film using acrylic add-corona treatment Part II. Long term aging surface properties. Surf Coat Technol 2013 234 1-142. 

The effect of preform thermal history on the transparency of biaxially-oriented polypropylene (BOPP) films was investigated. Preform sheets were prepared by conpression molding with careful variation of cooling rates, and subsequently were oriented using a Bruckner Karo IV stretcher. The small and large-scale surface roughnesses of oriented films were determined by atomic force microscopy (AFM) and optical microscopy, and correlated with light transmission measmed by UV-Vis spectrometry. 

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