2014年3月31日星期一
2014年3月20日星期四
About Tea Bag
A tea bag being removed from a mug of hot
tea to halt the brewing process
Tetrahedron shaped tea bags made of
polylactide (PLA), a bioplastic, shown here containing dried peppermint leaves
Three
different teas in tea bags
A tea bag is a small, porous sealed bag
containing tea leaves and used with water for brewing the beverage called tea,
or herbs or spices for brewing herbal teas (also known as "tisane").
Tea bags are commonly made of filter paper, silk or food grade plastic. The bag
contains the tea leaves while the tea is steeped, making it easier to dispose
of the leaves, and performs the same function as a tea infuser. Some tea bags
have an attached piece of string with a paper label at the top that assists in
removing the bag while also displaying the brand and/or variety of tea.
In countries where the use of loose tea
leaves is more prevalent, the term tea bag is commonly used to describe paper
or foil packaging for loose leaves. They are usually square or rectangular
envelopes with the brand name, flavour and decorative patterns printed on them.
History
In China, during the Tang Dynasty
(618–907), paper was folded and sewn into square bags to preserve the flavor of
tea.
The first tea bags were hand-sewn fabric
bags; tea bag patents date as early as 1903.First appearing commercially around
1904, tea bags were successfully marketed by the tea and coffee shop merchant
Thomas Sullivan from New York, who shipped his tea bags around the world. The
loose tea was intended to be removed from the sample bags by customers, but
they found it easier to brew the tea with the tea still enclosed in the porous
bags. Modern tea bags are usually made of paper fibre. The heat-sealed paper
fiber tea bag was invented by William Hermanson,one of the founders of
Technical Papers Corporation of Boston.[citation needed] Hermanson sold his
patent to the Salada Tea Company in 1930.
The rectangular tea bag was not invented
until 1944. Prior to this, tea bags resembled small sacks.
Production
Teas
A broad variety of teas, as well as other
infusions like herbal teas, are available in tea bags. Typically, tea bags use
fannings, the left-overs after larger leaf pieces are gathered for sale as
loose tea, but some companies sell teabags containing whole-leaf tea.
Paper
Main article: Filter paper
Tea bag paper is related to paper found in
milk and coffee filters and is a blend of wood and vegetable fibers. The
vegetable fiber is bleached pulp abaca hemp, a plantation banana plant grown
for its fiber, mostly in the Philippines
and Colombia.
Heat-sealed tea bag paper usually has a heat-sealable thermoplastic such as PVC
or polypropylene as a component fiber on the inner tea bag surface.
Polymers made from epichlorohydrin are
sometimes used in the manufacturing of tea bags. Epichlorohydrin is classified
by several international health research agencies and groups as a probable or
likely carcinogen in humans.
Tea
bag manufacturing machines
The top tea bag production machine
companies in the world are MAI from Mar del Plata,
Argentina with customers in
78 countriesand innovating designs, Teepack from Meerbusch,
Germany, and IMA, from Bologna, Italy.
A standard machine produced by the MAI company can fill 120 rectangular bags
per minutecontaining up to 3.3 grams per bag, which allows the packaging of
herbal teas. Another company, the Italian Tecnomeccanica, has a faster design
capable of filling 250 tetrahedral bags per minute. And
the new manufacturer is CAMA from China, they produce various teabag packing machines, including
single chamber teabag, double chamber teabag and pyramid teabag. CAMA is the
top supplier of packing machinery in Asia.
Circular
tea bags
Tetrahedral
nylon tea bag
Traditionally, tea bags have been square or
rectangular in shape. More recently circular and tetrahedral bags have come on
the market and are often claimed by their manufacturers to improve the quality
of the brew.
Empty tea bags are also available for
consumers to fill with tea leaves themselves. These are typically open-ended
pouches with long flaps. The pouch is filled with an appropriate quantity of
leaf tea and the flap is closed into the pouch to retain the tea. Such tea bags
combine the ease of use of a commercially-produced tea bag with the wider tea
choice and better quality control of loose leaf tea.
Because of the convenience of tea bags, a
wide variety of herbs can be purchased as "tea bag cut", a grade
which is specified in terms of particle size, typically with the bulk of the
leaves around 1–1.5 mm.
The nylon tetrahedral tea bag containing
larger tea leaf fragments made an appearance in the marketplace for
aficionados. The tetrahedral shape allows more room for the leaf to steep.
Environmentalists prefer silk to nylon because of health and biodegradability
issues. Another material for tea bags is Soilon, made from corn starch.
Coffee
bags
The concept of pre-measured portions to be
infused in disposable bags has also been applied to coffee in the form of
coffee bags, although this has not achieved such wide acceptance as tea bags.
Tea bag related activities
Decorative tea bag labels have become the
basis for large collections and many collectors collect tea bags from around
the world.
Teabag folding began in the Netherlands and
is often credited to Tiny van der Plas. It is a form of origami in which
identical squares of patterned paper (cut from the front of tea bag sachets)
are folded, and then arranged in rosettes. These rosettes are usually used to
decorate gift cards and it has become a popular craft in both the US and UK since 2000.
2014年3月16日星期日
DXDC50I Pyramid tea bag with envelope packing machine
Model DXDC50I is our new pyramid (triangle)
tea bag with three-side sealing flat envelope packing machine. It is used for
the packing of tea leaves, such as green tea, black tea, oolong tea etc. The pyramid
bags have good perviousness and perspectivity. Each pyramid tea bag is
individually wrapped by envelope for freshness.
Characteristics:
01.To adopt pneumatic control
system, a simple and compact mechanism
02.Ultrasound sealing and cutting
with high reliability is used on pyramid bag forming system.
03.Provide Servo control for
precise traction of envelope.
04.It can adjust size of pyramid
bag and envelope.
05.It could produce pyramid bags
and envelope separately.
06. Volumetric loading mechanism, it
can meet customer’s request of measuring precision
07. A sensing system that follows
color mark automatically and ensures printing logo on a proper place.
08. Various heat sealable laminated
materials(Plastic/P.E, Plastic/foil/P.E)
Optionals:
Auger feeding device
Date printing device
Technical data:
01.Production：40~50bags/min
02.Packing
material : food grade non-woven, nylon filter.
03.Size
of pyramid: 50~80mm(L)
(Width
of packing material : 120mm，140mm，160mm，180mm)
04.Envelope materials: heat sealable laminated
materials(Plastic/P.E, Plastic/foil/P.E)
Size of flat envelope: 80~110mm（H）×85~125mm（W）
(Width of envelope material :160mm﹑180mm﹑200mm﹑220mm)
05.Dosage（pyramid bags）：5~40cm3
06.Power：AC 22V/50Hz
07.Total power:2KW
08.Air pressure：0.4~0.6MPa
09.Air consumption：200L/min
10.Overall dimension：1960mm（L）×1110mm（W）×2390mm（H）
2014年3月13日星期四
Model CCFD6 Tea Bag Packing Machine
Product Description：
Tea bag
packing machine Model CCFD6
Features
such functions as automatic ration filling, heat-sealing of tea bags, automatic
plastering of cotton thread and tags, and cold-sealing of the envelope in the
longitudinal direction.
Technical data:
01.
Output: Max. 110bags/minute
02.
Max. Dosage: 8cm3
03. Bag
dimensions: 62.5mm
x 50mm
04.
Envelope dimensions: 70mm x
65mm
05. Tag
dimensions: 28mm x
24mm
06.
Thread length: 210mm
07.
Power supply: AC 380V, 1.5KW
08. Net
Weight: 565kg
09.Gross
weight:720kg
10.
Overall dimensions: 1.7m x
0.9m x 2m
Packing:
11. 1pc/carton
12.
Carton dimensions: 1.236m
x 1m x 1.855m
video online:http://youtu.be/_nxpXTqWGF0
2014年3月5日星期三
Model DXDC8IV Tea Bag Packing Machine
Model DXDC8IV Tea Bag Packing Machine
Product Description：
Tea bag
packing machine Model DXDC8IV is our newest model, and features filling, heat
sealing, threading, labeling and over-wrapping functions. Adopting sealing pads
in place of the sealing rollers used in machines of previous generations, this
new system greatly improves the machine's flexibility and enables use of
different packaging materials. Main materials include paper/PE, plastic/foil/PE
and plastic/PE.
Technical data:
01.
Output: 105±5bags/minute
02.
Max. dosage: 8cm 3
03.Bag
dimensions: 62.5mm
x 50mm
04.
Envelope dimensions: 80mm x
70mm
05. Tag
dimensions: 28mm x
24mm
06.
Thread length: 210mm
07.Power
supply: AC 380V / 220V
08.
Total power: 2.5KW
09.Net Weight:
1210kg
10.Gross
weight:1410kg
11.
Overall dimensions: 1.688m
x 1.33m x 2.205m
Packing:
12.1pc/carton
13.Carton
dimensions: 1.84 x 1.29 x 1.89m
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