Additives for PET | materials feature Formulating appearance
Product aesthetics take numerous forms, and while clarity is vital in many applications, some manufac- turers prefer different looks, especially those that appear soft and subtle, through use of materials that promote degrees of haze and translucence in fi lms.
One supplier of such additives is
A. Schulman. The company’s PolyBatch PT DUL masterbatch grades, primarily for biaxially oriented PET (BOPET) fi lms, can be tailored to produce varying degrees of haze and gloss in consumer packaging, laminates, adhesive fi lms, label stock and protective fi lms for electronic devices such as TV screens and computer monitors.
Chris Kerscher, marketing manager for masterbatches at Schulman, says that the additives promote internal light
refraction within the fi lms to produce desired effects. The company’s original product in the line was PT DUL 3040. It recently added a second grade, PT DUL 3055, a
matting agent masterbatch that uses light-scattering technology for high haze and low gloss in BOPET and monolayer fi lms. Kerscher says that the degree of matte appearance is determined by dosing level and fi lm thickness. The best matte surfaces, he reports, come when PT DUL 3055 is used in a skin layer with a minimum thickness of 2 microns.
“Design trends in consumer packag- ing include soft, natural-appearing articles,” Kerscher says. “These additives provide an alternative to a printed varnished look or embossing.” One common technique that blends product functionality with aesthetics is amber packaging, whether moulded, extruded or thermoformed. The amber colour, of course, provides an effective UV barrier and can, with the right
concentration and package design, enhance the appeal and shelf life of products. Among materials displayed by Sukano at K2013 last
Amosorb Plus from Color- Matrix is an oxygen
scavenger that maintains container clarity
Polymers
Conductive Carbon Black • electrical conductivity • easy-dispersion
• high purity For electronic packaging, fuel hoses, fl ooring, power cables and accessories, conveying belts, ATEX applications.
www.timcal.com
Graphite & Coke • thermal conductivity • electrical conductivity
• lubrication For seals, water-meters, heat sinks, geothermal pipes, LED light sockets, primers for electrostatic painting, gas barrier properties.
April 16-18 2014 Plastic Japan
April 23-26 2014 Chinaplas
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78