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Sewn
Valve Gusseted Sack : |
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This
sack is completely fabricated in the plant with a small opening
or valve in one corner through which the sack is filled. The
valve is made with an inner flap, which operates as a self-closing
check valve after filling. The sack is available with a plain
valve or a valve with an extended inner sleeve. |
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Sewn
Valve Gusseted Sack with Tuck-in Sleeve : |
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After this sack is filled, the sleeve is manually folded down
and back into the pocket under the sleeve for a securely held,
positive closure against sifting. On occasion, sewn valve sacks
are made of flat tubes (non-gusseted). |
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Sewn
Open Mouth Gusseted Sack : |
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The
bottom closure for this sack is made in the sack factory, and
the top closure is applied after the sack is filled. The top
is usually made by sewing, often with bound over tape or tape
over sewing applied by automatic or semi-automatic machines
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Sewn
Open Mouth Flat Tube Sack : |
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The
bottom closure on this sack is made in the sack factory. After
the sack has been filled, the top closure is made by sewing
or other means. For added protection, sewn closures are sometimes
dipped in a sealing compound, which is absorbed into the tape,
thread and filler cord, making the closure moisture-resistant,
yet flexible. Various other moisture-resistant closures have
been developed as well. Some multi-walls made with polyethylene
liners or polyethylene-coated papers can be heat-sealed for
better closure. |
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Sewn
Bottom and Top Open Corner Sack : |
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An "intermediate"
variety of package somewhere between the basic valve and open
mouth type sacks. These sacks are often used for commodities
packed in a molten state, which solidify upon cooling, taking
the shape and size of the sack. These sacks are usually filled
by a pipe inserted into the open corner. The walls forming the
corner are then brought together and stapled.Tape is stapled
down over the closure for further reinforcement |
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Pasted
Valve Sack : |
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This is completely
fabricated in the sack factory with an opening or valve in one
corner through which the sack is filled. The valve is made with
an inner flap which functions as a self-closing check valve
after filling. It is available with a plain valve or with an
extended inner sleeve of paper or film. |
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Pasted
Valve Sack with Tuck-in Sleeve : |
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After this sack
is filled, the sleeve is manually folded down and back into
the pocket under the sleeve for positive closure against sifting.
Sleeves that are thermoplastic-coated may be heat-sealed. |
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Pasted
Open Mouth Satchel Bottom Sack : |
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Made from a flat
tube (non-gusseted), with a satchel-type pasted bottom. After
filling, the top closure may be made by gluing, by tying with
twine or wire twisted manually or by machine. Top closures may
also be made by sewing, stapling or sealing with gummed or pressure-sensitive
tape according to product requirements. |
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Pasted
Open Mouth Automatic(S.O.C) : |
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This sack is gusseted
with a factory-made pasted square bottom. After filling, the
top closure may be made by sewing, gluing, stapling, wire tying
or sealing with gummed or pressure- sensitive tape. For added
strength and resistance to sifting, bound over tape or tape
over sewing may be applied to the closure. |
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Pasted
Open Mouth Stepped-End Sack(Gusseted or Flat Tube) : |
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A pasted bottom
open mouth sack manufactured with stepped walls at the top.
After the sack is filled, these walls are folded to form a multi-ply,
sift resistant closure by applying a suitable adhesive or by
reactivating factory-applied adhesive.
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Double
Fold Sack : |
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The bottom of this
sack is folded over twice and then adhered to the sack wall.
The top of the sack can be manufactured for stepped-end pasted
open mouth or sewn open mouth closure. |
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Balers
: |
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Balers are sewn
or pasted bottom open mouth sacks designed for the shipping
or transporting of groups of small, filled paper bags also known
as consumer bags. Small packages nest within the baler, providing
a solid, compact unit during handling and shipping. Baler capacity
is usually not more than 60 pounds. |
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