| 摘要 |
Plastic foam is applied by pushing it through or spreading it with notched spreader onto support to which it adheres and sets, forming a foam cushion in stripes that can be very close together or quite far apart. Stripes can be straight or wavy and support can be paper or plastic film such as polyethylene terephthalate. Foam can contain or be coated with antistat and/or volatile corrosion inhibitor and can be made of heat-sealable plastic or can be cold sealed by adhesives such as cohesive-nonadhesive top coatings.
|
