FOB Price
Obtenir le dernier prix0.09 / Piece
|Minimum Order
Localité:
Zhejiang China
Prix de commande minimale:
Commande minimale:
100000 Piece
Packaging Detail:
100pcs/shrinked film
Delivery Time:
25days
Supplying Ability:
30000 Piece per Day
Payment Type:
T/T, L/C
Personne àcontacter Mr. Jeffrey
jinhua xiaoshan, Hangzhou, Zhejiang
About Molded Pulp
From Wikipedia, the free encyclopedia
Molded pulp, also named Moulded pulp or Molded Fibre, is a
packaging material, typically made from recycled paperboard and
newsprint. It is used for protective packaging or for food service
trays and beverage carriers. Other typical uses are end caps, trays
and clamshell containers.
For many applications, molded pulp is less expensive than expanded polystyrene (EPS), vacuumed formed PET and PVC, corrugation and foams.
Molded pulp is often considered a sustainable packaging material,as defined by the Sustainable Packaging Coalition, since it is produced from recycled materials, and can be recycled again after its useful life-cycle.
Types of Molded Pulp
Several types of molded pulp can be manufactured by several
processes.
Type*1: Thick-Wall
These products usually have wall thicknesses of 3/*6" to 1/2" and
are used primarily for support packaging applications. The surfaces
are very rough on one side and moderately smooth on the opposite
side. Product definition is moderate due to the use of relatively
inexpensive single-pass molds and the use of mixed recovered paper
and kraft paper slurries. Typical uses are for edge and edge
protector, heavy item packaging, auto replacement parts, molded
pulp pallet trays etc.
Type*2: Transfer Molded
Transfer molded products are usually thin walled, 1/*6" to 3/*6",
and are the most prevalent type in use today. The process uses
vacuum forming and take-off or transfer molds, where the mold is an
extremely fine wire mesh in the shape of the upper/exposed surface.
The fibrous slurries are frequently made up of a high percentage or
entirely of recycled newspaper, which produces a relatively smooth
surface on one side and a fairly smooth surface on the opposite
side with good accuracy and definition.
Prior to the molding process, the mesh is mated with a vacuum chamber that draws air and moisture through the mesh into the chamber, with the mesh mold suspended above a liquid return pool. The fibrous slurry is sprayed from below onto the mold, and the vacuum draws the slurry tightly against the mesh, filling all gaps and spaces. When airflow through the mesh has been sufficiently blocked, the excess slurry falls into the return pool for recycling, and the mold advances onward to the drying process, following by separation of the mesh mold from the dried fiber plating.
Typical uses of transfer molded products are for packaging electronic equipment, cellular phones and other household and hardware items. Very high capacity, high-speed transfer molding equipment is used to produce drink trays, cup carriers ,wine shippers, egg cartons, egg trays, pulp bedpan liners, pulp urinals,fruit trays, slipper pans, commode pans, etc.
Type*3: Thermoformed Fiber
This newest form of molded pulp is the highest quality of thin
walled products available today. The process uses
"Cure-In-The-Mold" technology which produces strong, well defined
smooth surfaced molded pulp products. After being formed, the
product is captured in heated forming molds which presses and
densifies the molded products. They are accurately formed and have
the appearance of plastic material. The products are ejected from
the heated molds in their finished
state as opposed to being dried in a heated oven. Typical uses for this type are for point-of- purchase packaging and those applications where high definition and appearance are of prime importance.
Type*4: Processed
This type of molded pulp product is that which has undergone some
kind of secondary processing which is generally different than or
in addition to, the basic production procedure. This could apply to
any of the first three types. Secondary processing could be
coating, printing, hot-pressing, die-cutting, trimming or
manufactured using colors or special slurry additives. Uses are for
many kinds of custom applications.
