| Apparel Packing Large Bubble Envelopes , Self Seal Bubble Mailers
380x330 #B4 | | | | Speciallity | Specifications
The pressurized kraft paper is mainly used in the pressing process
of FPC, PCB, CCL and other industries. It plays the role of heat
preservation, water absorption, decompression, buffer and heat
transfer during the process of press plate. It has all kinds of
weight, providing 190g/m², 220g/m², 254g/m²
and other different weights for years, and can provide customized
production services from 190g/m² to 450g/m² for
customers.
Advantage
1. paper is smooth and clean. No, so as not to affect the quality
of plate suriko wrinkles, pores, sand etc..
2. good hot press elasticity, high flatness, significantly improve
the quality of compression and improve the product yield.
3. the heat transfer performance is smooth, uniform and no
fluctuation, and the heat transfer rate is moderate.
4. reel paper end is flat, no more than 2 pieces of paper joint. | | | | Brief Introduction | Kraft bubble mailers
Kraft bubble mailers or kraft is paper or paperboard (cardboard)
produced from chemical pulp produced in the kraft process.
Sack Kraft bubble mailers, or just sack paper, is a porous Kraft
bubble mailers with high elasticity and high tear resistance,
designed for packaging products with high demands for strength and
durability.
Pulp produced by the kraft process is stronger than that made by
other pulping processes; acidic sulfite processes degrade cellulose
more, leading to weaker fibers, and mechanical pulping processes
leave most of the lignin with the fibers, whereas kraft pulping
removes most of the lignin present originally in the wood. Low
lignin is important to the resulting strength of the paper, as the
hydrophobic nature of lignin interferes with the formation of the
hydrogen bonds between cellulose (and hemicellulose) in the fibers.
Kraft pulp is darker than other wood pulps, but it can be bleached
to make very white pulp. Fully bleached kraft pulp is used to make
high quality paper where strength, whiteness and resistance to
yellowing are important. | | | | Data Sheet | | Materials Classification : | PET | | Melting Point : | 168℃ | | Working Temperature : | -100°C~+100°C | | Material Density : | 0.930g/cm³ | | Conventional Size : | 380x330 #B4 () | | Sample Color : | Green | | Basic Material : | Laminated Material | | Protruding Characteristics : | Biodegradable | | Application Industry : | Apparel | | Shape Style : | Single Web Stand Up | | | | | | | Materials introduction | Advantage
1. has good mechanical properties, impact strength is 3~5 times of
other films, good folding resistance.
2. oil resistant, fat resistant, acid tolerant, dilute alkali,
resistant to most solvents.
3. with high and low temperature performance, can be used for a
long time at 120 degrees Celsius temperature range, short-term use
of resistant to high temperature of 150 DEG C, -70 resistant to low
temperature, and high and low temperature effects on the mechanical
properties is very small.
The permeability of 4. gas and water vapor is low, and it has
excellent performances of gas resistance, water, oil and odor.
5. high transparency, can block ultraviolet light, good gloss.
6. non-toxic, tasteless, sanitary, safe, and can be used directly
for food packaging. | | | |
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